@article {3196, title = {Hyperpolarized NMR Spectroscopy: d-DNP, PHIP, and SABRE Techniques}, journal = {Chemistry - An Aisan Journal}, volume = {13}, year = {2018}, month = {08/2018}, abstract = {

The intensity of NMR signals can be enhanced by several orders of magnitude by using various techniques for the hyperpolarization of different molecules. Such approaches can overcome the main sensitivity challenges facing modern NMR/magnetic resonance imaging (MRI) techniques, whilst hyperpolarized fluids can also be used in a variety of applications in material science and biomedicine. This Focus Review considers the fundamentals of the preparation of hyperpolarized liquids and gases by using dissolution dynamic nuclear polarization (d-DNP) and parahydrogen-based techniques, such as signal amplification by reversible exchange (SABRE) and parahydrogen-induced polarization (PHIP), in both heterogeneous and homogeneous processes. The various new aspects in the formation and utilization of hyperpolarized fluids, along with the possibility of observing NMR signal enhancement, are described.

}, doi = {10.1002/asia.201800551}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/asia.201800551}, author = {Kirill Kovtunov and Ekaterina Pokochueva and Oleg Salnikov and Samuel Cousin and Dennis Kurzbach and Basile Vuichoud and Sami Jannin and Eduard Chekmenev and Boyd Goodson and Danila Barskiy and Igor Koptyug} } @article {247, title = {High-Resolution Zero-Field NMR J-Spectroscopy of Aromatic Compounds}, journal = {Journal of the American Chemical Society}, volume = {135}, year = {2013}, note = {J Am Chem Soc103RNTimes Cited:0Cited References Count:59}, month = {02/2013}, pages = {3607-3612}, abstract = {

We report the acquisition and interpretation of nuclear magnetic resonance (NMR) J-spectra at zero magnetic field for a series of benzene derivatives, demonstrating the analytical capabilities of zero-field NMR The zeroth-order spectral patterns do not overlap, which allows for straightforward determination of the spin interactions of substituent functional groups. Higher-order effects cause additional line splittings, revealing additional molecular information. We demonstrate resonance linewidths as narrow as 11 mHz, permitting resolution of minute frequency differences and precise determination of long-range J-couplings. The measurement of J-couplings with the high precision offered by zero-field NMR may allow further refinements in the determination of molecular structure and conformation.

}, keywords = {density}, isbn = {0002-7863}, doi = {Doi 10.1021/Ja312239v}, url = {://WOS:000315936700050}, author = {Blanchard, J. W. and Ledbetter, M. P. and Theis, T. and Butler, M. C. and Budker, D. and Pines, A.} } @article {243, title = {HyperCEST detection of a 129Xe-based contrast agent composed of cryptophane-A molecular cages on a bacteriophage scaffold}, journal = {Magnetic Resonance in Medicine}, volume = {69}, year = {2013}, pages = {1245-1252}, author = {Stevens, T.K. and Palaniappan, K.K. and Ramirez, R.M. and Francis, M.B. and Wemmer, D.E. and Pines, A.} } @article {1350, title = {Hyperpolarized xenon-based molecular sensors for label-free detection of analytes}, journal = {Journal of the American Chemical Society}, volume = {136}, year = {2013}, month = {12/2013}, pages = {164-168}, doi = {10.1021/ja406760r}, author = {Garimella, Praveena and Meldrum, Tyler and Witus, Leah Suzanne and Smith, Monica and Bajaj, Vikram and Wemmer, David E. and Francis, Matthew B. and Pines, Alexander} } @article {267, title = {Hyperpolarized xenon NMR and MRI signal amplification by gas extraction}, journal = {Proceedings of the National Academy of Sciences of the United States of America}, volume = {106}, year = {2009}, note = {P Natl Acad Sci USA503MDTimes Cited:12Cited References Count:33}, month = {Oct 6}, pages = {16903-16906}, abstract = {

A method is reported for enhancing the sensitivity of NMR of dissolved xenon by detecting the signal after extraction to the gas phase. We demonstrate hyperpolarized xenon signal amplification by gas extraction (Hyper-SAGE) in both NMR spectra and magnetic resonance images with time-of-flight information. Hyper-SAGE takes advantage of a change in physical phase to increase the density of polarized gas in the detection coil. At equilibrium, the concentration of gas-phase xenon is approximate to 10 times higher than that of the dissolved-phase gas. After extraction the xenon density can be further increased by several orders of magnitude by compression and/or liquefaction. Additionally, being a remote detection technique, the Hyper-SAGE effect is further enhanced in situations where the sample of interest would occupy only a small proportion of the traditional NMR receiver. Coupled with targeted xenon biosensors, Hyper-SAGE offers another path to highly sensitive molecular imaging of specific cell markers by detection of exhaled xenon gas.

}, keywords = {field}, isbn = {0027-8424}, doi = {Doi 10.1073/Pnas.0909147106}, url = {://WOS:000270537500005}, author = {Zhou, X. and Graziani, D. and Pines, A.} } @article {308, title = {High-resolution NMR spectroscopy with a portable single-sided sensor}, journal = {Science}, volume = {308}, year = {2005}, note = {Science931JTTimes Cited:89Cited References Count:7}, month = {May 27}, pages = {1279-1279}, keywords = {fields}, isbn = {0036-8075}, doi = {Doi 10.1126/Science.1108944}, url = {://WOS:000229482300037}, author = {Perlo, J. and Demas, V. and Casanova, F. and Meriles, C. A. and Reimer, J. and Pines, A. and Blumich, B.} } @article {312, title = {High-resolution nuclear magnetic resonance spectroscopy of biological tissues using projected magic angle spinning}, journal = {Magnetic Resonance in Medicine}, volume = {54}, year = {2005}, note = {Magnet Reson Med949DSTimes Cited:2Cited References Count:28}, month = {Aug}, pages = {253-257}, abstract = {

High-resolution NMR spectra of materials subject to anisotropic broadening are usually obtained by rotating the sample about the magic angle, which is 54.7 degrees to the static magnetic field. In projected magic angle spinning (p-MAS), the sample is spun about two angles, neither of which is the magic angle. This provides a method of obtaining isotropic spectra while spinning at shallow angles. The p-MAS experiment may be used in situations where spinning the sample at the magic angle is not possible due to geometric or other constraints, allowing the choice of spinning angle to be determined by factors such as the shape of the sample, rather than by the spin physics. The application of this technique to bovine tissue samples is demonstrated as a proof of principle for future biological or medical applications.

}, keywords = {field}, isbn = {0740-3194}, doi = {Doi 10.1002/Mrm.20585}, url = {://WOS:000230765700001}, author = {Martin, R. W. and Jachmann, R. C. and Sakellariou, D. and Nielsen, U. G. and Pines, A.} } @article {330, title = {High-resolution NMR of static samples by rotation of the magnetic field}, journal = {Journal of Magnetic Resonance}, volume = {169}, year = {2004}, note = {J Magn Reson830ZETimes Cited:13Cited References Count:24}, month = {Jul}, pages = {13-18}, abstract = {

Mechanical rotation of a sample at 54.7degrees with respect to the static magnetic field, so-called magic-angle spinning (MAS), is currently a routine procedure in nuclear magnetic resonance (NMR). The technique enhances the spectral resolution by averaging away anisotropic spin interactions thereby producing isotropic-like spectra with resolved chemical shifts and scalar Couplings. It should be possible to induce similar effects in a static sample if the direction of the magnetic field is varied, e.g., magic-angle rotation of the B-0 field (B-0-MAS). Here, this principle is experimentally demonstrated in a static sample of solid hyperpolarized xenon at similar to3.4mT. By extension to moderately high fields, it is possible to foresee interesting applications in situations where physical manipulation of the sample is inconvenient or impossible. Such situations are expected to arise in many cases from materials to biomedicine and are particularly relevant to the novel approach of ex situ NMR spectroscopy and imaging. (C) 2004 Elsevier Inc. All rights reserved.

}, keywords = {hz}, isbn = {1090-7807}, doi = {Doi 10.1016/J.Jmr.2004.03.023}, url = {://WOS:000222161900002}, author = {Meriles, C. A. and Sakellariou, D. and Moule, A. and Goldman, M. and Budinger, T. F. and Pines, A.} } @article {321, title = {Hyperpolarized xenon nuclear spins detected by optical atomic magnetometry}, journal = {Physical Review Letters}, volume = {93}, year = {2004}, note = {Phys Rev Lett863ATTimes Cited:32Cited References Count:22}, month = {Oct 15}, abstract = {

We report the use of an atomic magnetometer based on nonlinear magneto-optical rotation with frequency-modulated light to detect nuclear magnetization of xenon gas. The magnetization of a spin-exchange-polarized xenon sample (1.7 cm(3) at a pressure of 5 bars, natural isotopic abundance, polarization 1\%), prepared remotely to the detection apparatus, is measured with an atomic sensor. An average magnetic field of similar to10 nG induced by the xenon sample on the 10 cm diameter atomic sensor is detected with signal-to-noise ratio similar to10, limited by residual noise in the magnetic environment. The possibility of using modern atomic magnetometers as detectors of nuclear magnetic resonance and in magnetic resonance imaging is discussed. Atomic magnetometers appear to be ideally suited for emerging low-field and remote-detection magnetic resonance applications.

}, keywords = {mri}, isbn = {0031-9007}, doi = {Doi 10.1103/Physrevlett.93.160801}, url = {://WOS:000224533300012}, author = {Yashchuk, V. V. and Granwehr, J. and Kimball, D. F. and Rochester, S. M. and Trabesinger, A. H. and Urban, J. T. and Budker, D. and Pines, A.} } @article {339, title = {High-resolution NMR correlation spectra of disordered solids}, journal = {Journal of the American Chemical Society}, volume = {125}, year = {2003}, note = {J Am Chem Soc663JYTimes Cited:70Cited References Count:46}, month = {Apr 9}, pages = {4376-4380}, abstract = {

We show how high-resolution NMR spectra can be obtained for solids for which the spectra are normally broadened due to structural disorder. The method relies on correlations in the chemical shifts between pairs of coupled spins. It is found experimentally that there are strong correlations in the chemical shifts between neighboring spins in both phosphorus-31 and carbon-13 spectra. These correlations can be exploited not only to provide resolution in two-dimensional spectra, but also to yield \"chains\" of correlated chemical shifts, constituting a valuable new source of structural information for disordered materials.

}, keywords = {SPECTROSCOPY}, isbn = {0002-7863}, doi = {Doi 10.1021/Ja0292389}, url = {://WOS:000182003500067}, author = {Sakellariou, D. and Brown, S. P. and Lesage, A. and Hediger, S. and Bardet, M. and Meriles, C. A. and Pines, A. and Emsley, L.} } @article {338, title = {High-resolution NMR of anisotropic samples with spinning away from the magic angle}, journal = {Chemical Physics Letters}, volume = {377}, year = {2003}, note = {Chem Phys Lett714CRTimes Cited:6Cited References Count:27}, month = {Aug 15}, pages = {333-339}, abstract = {

High-resolution NMR of anisotropic samples is typically performed by spinning the sample around an axis at the magic angle of 54.7degrees with the static magnetic field. Geometric and engineering constraints often prevent spinning at this specific angle. Implementations of magic angle field rotation are extremely demanding due to power requirements or an inaccessible geometry. We present a methodology for taking the magic out of MAS while still obtaining both isotropic and anisotropic spectral information during sample spinning or field rotation at arbitrary angles. Using projected-MAS, we obtained resolved scaled isotropic chemical shifts in inhomogeneously broadened spinning samples. Published by Elsevier B.V.

}, keywords = {axis}, isbn = {0009-2614}, doi = {Doi 10.1016/S0009-2614(03)01149-7}, url = {://WOS:000184895200012}, author = {Sakellariou, D. and Meriles, C. A. and Martin, R. W. and Pines, A.} } @article {372, title = {High-resolution NMR of quadrupolar nuclei using mixed multiple-quantum coherences}, journal = {Journal of Magnetic Resonance}, volume = {149}, year = {2001}, note = {J Magn Reson431JNTimes Cited:17Cited References Count:16}, month = {Apr}, pages = {268-270}, abstract = {

A multiple-quantum magic angle spinning (MQMAS) NMR experiment of quadrupolar nuclei is demonstrated, which uses two different multiple quantum coherences in tl to refocus the quadrupolar broadening. This experiment has the potential of achieving improved resolution over current techniques. (C) 2001 Academic Press.

}, keywords = {pulses}, isbn = {1090-7807}, doi = {Doi 10.1006/Jmre.2001.2303}, url = {://WOS:000168628200013}, author = {Jerschow, A. and Logan, J. W. and Pines, A.} } @article {382, title = {High-T-c SQUIDs for low-field NMR and MRI of room temperature samples}, journal = {Ieee Transactions on Applied Superconductivity}, volume = {9}, year = {1999}, note = {Ieee T Appl SuperconPart 3225MCTimes Cited:5Cited References Count:18}, month = {Jun}, pages = {4424-4427}, abstract = {

We have constructed a high-T-c SQUID spectrometer to detect NMR signals from samples at room temperature in magnetic fields up to 3 mT. The multiloop SQUID magnetometer has a system noise of about 30 fT/Hz(1/2) at the relevant frequencies of 2 to 100 kHz, The magnetometer is operated in vacuum at 77 K, and is separated from the sample, which is less than 1.5 mm away, by a sapphire window, In a magnetic field of 2 mT we can detect the proton spin echo at 86 kHz without signal averaging. This sensitivity enables us to obtain one-dimensional images. In addition, we present data on hyperpolarized Xe-129, which has an optically pumped polarization of several percent.

}, keywords = {frequencies}, isbn = {1051-8223}, doi = {Doi 10.1109/77.784006}, url = {://WOS:000081964500386}, author = {Schlenga, K. and McDermott, R. F. and Clarke, J. and de Souza, R. E. and Wong-Foy, A. and Pines, A.} } @article {402, title = {A high-resolution(17)O NMR study of siliceous zeolite faujasite}, journal = {Journal of the American Chemical Society}, volume = {120}, year = {1998}, note = {J Am Chem SocZj097Times Cited:66Cited References Count:19}, month = {Apr 15}, pages = {3510-3511}, keywords = {workstation computers}, isbn = {0002-7863}, doi = {Doi 10.1021/Ja9743001}, url = {://WOS:000073179200032}, author = {Bull, L. M. and Cheetham, A. K. and Anupold, T. and Reinhold, A. and Samoson, A. and Sauer, J. and Bussemer, B. and Lee, Y. and Gann, S. and Shore, J. and Pines, A. and Dupree, R.} } @article {453, title = {High-Field Cross-Polarization Nmr from Laser-Polarized Xenon to Surface Nuclei}, journal = {Applied Magnetic Resonance}, volume = {8}, year = {1995}, note = {Appl Magn ResonRt202Times Cited:30Cited References Count:17}, pages = {373-384}, abstract = {

A method for NMR investigations of surface nuclei using cross polarization from optically polarized xenon (OPCP) is described. We find this methodology results in enhancement factors of approximately 10(3) upon application to surface protons. The dynamics of Xe-129 transfer to protons is examined in some detail, including the time, temperature, and multiple contact dependences of signal intensities. Furthermore, we discuss the sensitivity of the transfer process to spatial diffusion. Finally, we report on application of the OPCP experiment to a low total surface area sample.

}, keywords = {gel}, isbn = {0937-9347}, url = {://WOS:A1995RT20200005}, author = {Gaede, H. C. and Song, Y. Q. and Taylor, R. E. and Munson, E. J. and Reimer, J. A. and Pines, A.} } @article {475, title = {High-Field Cross-Polarization Nmr from Laser-Polarized Xenon to a Polymer Surface}, journal = {Journal of the American Chemical Society}, volume = {115}, year = {1993}, note = {J Am Chem SocLx752Times Cited:77Cited References Count:16}, month = {Sep 8}, pages = {8491-8492}, keywords = {gas}, isbn = {0002-7863}, doi = {Doi 10.1021/Ja00071a086}, url = {://WOS:A1993LX75200086}, author = {Long, H. W. and Gaede, H. C. and Shore, J. and Reven, L. and Bowers, C. R. and Kritzenberger, J. and Pietrass, T. and Pines, A. and Tang, P. and Reimer, J. A.} } @article {501, title = {High-Field Nmr of Adsorbed Xenon Polarized by Laser Pumping}, journal = {Physical Review Letters}, volume = {66}, year = {1991}, note = {Phys Rev LettEv897Times Cited:202Cited References Count:35}, month = {Feb 4}, pages = {584-587}, abstract = {

Optical pumping has been used to enhance the pulsed NMR signal of Xe-129, allowing the detection of low-pressure xenon gas and of xenon adsorbed on powdered solids. We observe an increase in sensitivity of more than 2 orders of magnitude over conventional NMR, the current limitation being the laser power. Adsorbed xenon is observed at 298 K on graphitized carbon (10 m2/g) and on powdered benzanthracene (approximately 0.5 m2/g) below 170 K. The increased sensitivity of this technique allows the study of a large class of amorphous materials with surface areas below 10 m2/g including semiconductors, polymers, metal oxides, and catalysts.

}, keywords = {solids}, isbn = {0031-9007}, doi = {Doi 10.1103/Physrevlett.66.584}, url = {://WOS:A1991EV89700017}, author = {Raftery, D. and Long, H. and Meersmann, T. and Grandinetti, P. J. and Reven, L. and Pines, A.} } @article {504, title = {High-Resolution O-17 Nmr of Solid Silicates}, journal = {Journal of the American Chemical Society}, volume = {113}, year = {1991}, note = {J Am Chem SocEr082Times Cited:90Cited References Count:39}, month = {Jan 2}, pages = {32-38}, abstract = {

Several O-17-enriched silicates were studied by use of dynamic angle spinning (DAS) and double rotation (DOR) nuclear magnetic resonance spectroscopy. These methods average away second-order quadrupolar interactions by reorienting a sample about a time-dependent axis, thereby yielding high-resolution spectra of oxygen-17 nuclei. A narrow spectral line is observed for each distinct oxygen site at the sum of the isotropic chemical shift and the field-dependent isotropic second-order quadrupolar shift. Resolution is increased by up to 2 orders of magnitude compared to conventional magic angle spinning (MAS) spectra. Crystallographically inequivalent oxygens are now observable as distinct resonances in spectra of polycrystalline silicates such as diopside (CaMgSi2(17)O6), wollastonite (CaSi17O3), clinoenstatite (MgSi17O3), larnite (Ca2Si17O4),and forsterite (Mg2Si17O4).

}, keywords = {spectra}, isbn = {0002-7863}, doi = {Doi 10.1021/Ja00001a006}, url = {://WOS:A1991ER08200006}, author = {Mueller, K. T. and Wu, Y. and Chmelka, B. F. and Stebbins, J. and Pines, A.} } @article {515, title = {High-Resolution Al-27 Nmr-Spectroscopy of the Aluminophosphate Molecular-Sieve Vpi-5}, journal = {Nature}, volume = {346}, year = {1990}, note = {NatureDt679Times Cited:97Cited References Count:12}, month = {Aug 9}, pages = {550-552}, isbn = {0028-0836}, doi = {Doi 10.1038/346550a0}, url = {://WOS:A1990DT67900067}, author = {Wu, Y. and Chmelka, B. F. and Pines, A. and Davis, M. E. and Grobet, P. J. and Jacobs, P. A.} } @article {565, title = {High-Resolution Solid-State Nmr Averaging of 2nd-Order Effects by Means of a Double-Rotor}, journal = {Molecular Physics}, volume = {65}, year = {1988}, note = {Mol PhysR5253Times Cited:405Cited References Count:34}, month = {Nov}, pages = {1013-1018}, isbn = {0026-8976}, doi = {Doi 10.1080/00268978800101571}, url = {://WOS:A1988R525300018}, author = {Samoson, A. and Lippmaa, E. and Pines, A.} } @article {573, title = {Heteronuclear Zero-Field Nmr of Liquid-Crystals}, journal = {Journal of Magnetic Resonance}, volume = {72}, year = {1987}, note = {J Magn ResonH2852Times Cited:1Cited References Count:13}, month = {May}, pages = {567-573}, isbn = {0022-2364}, doi = {Doi 10.1016/0022-2364(87)90164-8}, url = {://WOS:A1987H285200020}, author = {Thayer, A. M. and Luzar, M. and Pines, A.} } @article {606, title = {High-Resolution Studies of Deuterium by Time-Domain Zero-Field Nqr}, journal = {Journal of Magnetic Resonance}, volume = {69}, year = {1986}, note = {J Magn ResonE1115Times Cited:11Cited References Count:49}, month = {Sep}, pages = {243-257}, isbn = {1090-7807}, doi = {Doi 10.1016/0022-2364(86)90076-4}, url = {://WOS:A1986E111500005}, author = {Millar, J. M. and Thayer, A. M. and Zimmermann, H. and Pines, A.} } @article {623, title = {High-Resolution Nmr with a Surface Coil}, journal = {Journal of the American Chemical Society}, volume = {107}, year = {1985}, note = {J Am Chem SocAvb48Times Cited:6Cited References Count:18}, pages = {7193-7194}, isbn = {0002-7863}, doi = {Doi 10.1021/Ja00310a082}, url = {://WOS:A1985AVB4800082}, author = {Gochin, M. and Pines, A.} } @article {620, title = {A High-Temperature High-Resolution Nmr-Study of Na-23, Al-27 and Si-29 in Molten Silicates}, journal = {Nature}, volume = {314}, year = {1985}, note = {NatureAdt99Times Cited:58Cited References Count:13}, pages = {250-252}, isbn = {0028-0836}, doi = {Doi 10.1038/314250a0}, url = {://WOS:A1985ADT9900039}, author = {Stebbins, J. F. and Murdoch, J. B. and Schneider, E. and Carmichael, I. S. E. and Pines, A.} } @article {626, title = {Heteronuclear Zero-Field Nmr}, journal = {Chemical Physics Letters}, volume = {106}, year = {1984}, note = {Chem Phys LettSt870Times Cited:16Cited References Count:9}, pages = {550-553}, isbn = {0009-2614}, doi = {Doi 10.1016/0009-2614(84)85381-6}, url = {://WOS:A1984ST87000014}, author = {Zax, D. B. and Bielecki, A. and Zilm, K. W. and Pines, A.} } @article {652, title = {High-Resolution Nmr-Spectra in Inhomogeneous Magnetic-Fields - Application of Total Spin Coherence Transfer Echoes}, journal = {Journal of the American Chemical Society}, volume = {103}, year = {1981}, note = {J Am Chem SocLt874Times Cited:64Cited References Count:10}, pages = {3578-3579}, isbn = {0002-7863}, doi = {Doi 10.1021/Ja00402a057}, url = {://WOS:A1981LT87400057}, author = {Weitekamp, D. P. and Garbow, J. R. and Murdoch, J. B. and Pines, A.} } @article {658, title = {High-Order Selective Sequences in Multiple-Quantum Nmr}, journal = {Journal of Magnetic Resonance}, volume = {40}, year = {1980}, note = {J Magn ResonKh908Times Cited:21Cited References Count:3}, pages = {581-583}, isbn = {1090-7807}, doi = {Doi 10.1016/0022-2364(80)90015-3}, url = {://WOS:A1980KH90800015}, author = {Warren, W. S. and Weitekamp, D. P. and Pines, A.} } @article {696, title = {High-Resolution C-13 Nmr in Solid Ammonium-Tartrate}, journal = {Bulletin of the American Physical Society}, volume = {19}, year = {1974}, note = {B Am Phys SocS1647Times Cited:0Cited References Count:0}, pages = {349-349}, isbn = {0003-0503}, url = {://WOS:A1974S164701005}, author = {Pines, A. and Chang, J. J. and Griffin, R. G.} } @article {722, title = {High-Resolution Nmr of N-15 in Solids}, journal = {Chemical Physics Letters}, volume = {17}, year = {1972}, note = {Chem Phys LettO4215Times Cited:47Cited References Count:17}, pages = {80-84}, isbn = {0009-2614}, doi = {Doi 10.1016/0009-2614(72)80330-0}, url = {://WOS:A1972O421500021}, author = {Gibby, M. G. and Griffin, R. G. and Pines, A. and Waugh, J. S.} } @article {718, title = {Homogeneous and Inhomogeneous Nuclear Spin Echoes in Solids}, journal = {Journal of Magnetic Resonance}, volume = {6}, year = {1972}, note = {J Magn ResonM2264Times Cited:33Cited References Count:32}, pages = {457-\&}, isbn = {1090-7807}, doi = {Doi 10.1016/0022-2364(72)90154-0}, url = {://WOS:A1972M226400001}, author = {Pines, A. and Rhim, W. and Waugh, J. S.} } @article {726, title = {High Resolution Nmr of Dilute Spins in Solids}, journal = {Bulletin of the American Physical Society}, volume = {16}, year = {1971}, note = {B Am Phys SocL0382Times Cited:0Cited References Count:3}, pages = {1408-\&}, isbn = {0003-0503}, url = {://WOS:A1971L038200080}, author = {Pines, A. and Gibby, M. G. and Waugh, J. S.} } @booklet {734, title = {Hindered Internal Rotation and Dimerization of N,N-Dimethylformamide in Carbon Tetrachloride}, journal = {Journal of the American Chemical Society}, volume = {91}, year = {1969}, note = {J Am Chem SocC9912Times Cited:170Cited References Count:39}, pages = {1585-\&}, isbn = {0002-7863}, doi = {Doi 10.1021/Ja01035a001}, url = {://WOS:A1969C991200001}, author = {Rabinovi, M. and Pines, A.} }