31P MAS NMR of P4S3. Crystalline-to-plastic phase transition induced by MAS in a double air-bearing stator

Bjorholm, T.; Jakobsen, Hans J.

doi:10.1016/0022-2364(89)90020-6

Cited by 26 publications

(26 citation statements)

References 13 publications

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“…In addition, lead nitrate decomposes at temperatures above 300ЊC, releasing nitrogen oxides which are toxic and reactive. Finally, lead nitrate has a moderately high density (approximately 4.5 g/cm 3 ) and may place excessive stress on some MAS rotors at high spinning speeds that could lead to sudden, catastrophic rotor failure.…”

Section: Measuring Dynamics Of Temperature Jumpsmentioning

confidence: 98%

“…Therefore, it is possible to use lead nitrate to determine the rate at which the sample temperature changes It is known that MAS produces a speed-dependent heating after a sudden jump in the VT gas temperature. In fact, it is of the sample (3,8,18,19), which is thought to be the net even possible to measure the transient temperature gradients effect of viscous drag and Joule-Thompson expansion of during a temperature jump. the gas surrounding the rotor.…”

Section: Measurement Of Mas-speed-dependent Heatingmentioning

confidence: 99%

“…The 207 Pb resoWhen temperature accuracy is of the greatest importance, nance in lead nitrate is very narrow, and its chemical shift perhaps the best method is to observe solid-to-solid phase has a remarkably large temperature dependence which is transitions by NMR (1)(2)(3). One unique advantage of this fairly linear over the range of 0130 to /150ЊC.…”

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

Temperature Dependence of 207 Pb MAS Spectra of Solid Lead Nitrate. An Accurate, Sensitive Thermometer for Variable-Temperature MAS

Bielecki

Burum

1995

Journal of Magnetic Resonance, Series A

574

532

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Section: Measuring Dynamics Of Temperature Jumpsmentioning

confidence: 98%

Section: Measurement Of Mas-speed-dependent Heatingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

Temperature Dependence of 207 Pb MAS Spectra of Solid Lead Nitrate. An Accurate, Sensitive Thermometer for Variable-Temperature MAS

Bielecki

Burum

1995

Journal of Magnetic Resonance, Series A

574

532

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“…The "P CS tensors of several inorganic phosphorus-sulphur systems were investigated recently by high-resolution solid state NMR (31)(32)(33)(34)(35). In these systems, AS of the PS,,?…”

Section: Figmentioning

confidence: 99%

Phosphorus-31 chemical shieldings in a fused cis-1,2,3-benzothiadiphosphole: a dipolar NMR study

Wu¹,

Wasylishen²,

Power³

et al. 1992

Can. J. Chem.

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GANG WU, RODERICK E. WASYLISHEN, WILLIAM P. POWER, and GRAZLANO BACCOLINI. Can. J. Chem. 70, 1229Chem. 70, (1992. Phosphorus-31 NMR static powder spectra and high-resolution magic angle spinnlng spectra have been obtained for a new heterocyclic compound, cis-2,10-dimethyl[l,2,3]benzothiad~phospholo[2,3b][1,2,3]benzothiadiphosphole (I), which contains a P(II1)-P(II1) single bond. The homonuclear 3 1~-3 '~ dipolar interaction manifests itself in both the magic angle spinning spectra and the non-spinning llne shape. Under the AX spin pair approximation, analysis of the spinning sidebands in the MAS experiment yields a full characterization of the two 3 1~ chemical shielding tensors. This approxlmation is confirmed by the exact powder line shape simulation for a homonuclear spin pair. Analysis of the dipolar subspectra also yields the absolute sign of 'J(P,P), which is found to be negative. (I), qui contient une liaison simple P(II1)-P(II1). L'interaction dipolarle 'P-"Phomonuclkaire se manifeste tant dans le spectre determine 21 l'aide de la technique de rotation a l'angle magique que dans la forme de la raie du spectre statique. En utilisant l'approximation AX pour la paire de spin, l'analyse des bandes latkrales de rotation obtenues lors des experiences r6alisCes B l'aide de la technique de rotation B I'angle magique, on obtient une caractkrisation complkte des deux tenseurs de blindage chimique du 3 '~. Cette approximation est confirmte par la simulation exacte de la forme de la raie du spectre statique pour une paire de spin homonuclkaires. L'analyse des sous-spectres dipolaires fournit aussi le signe absolu de la constante 'J(P,P), qui est nkgative.Mots clis : liaison simple phosphore-phosphore, tenseurs de blindage chimique, RMN dipolaire, technique de rotation a l'angle magique, forme de la raie du spectre statique.[Traduit par la redaction]

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“…This discrepancy may be caused by effects from the Cr 3+ ions in the studied single crystal. A fairly large variation in δ iso ( 59 Co) with changes in spinning speed observed in our preliminary 59 Co MAS studies of K 3 Co(CN) 6 suggested a large temperature dependence caused by frictional heating [32] for 59 Co in K 3 Co(CN) 6 . To investigate this effect, we have studied K 3 Co(CN) 6 by 59 Co VT MAS NMR of the central transition at 7.1 T over a temperature range from −28 to 76…”

Section: Resultsmentioning

confidence: 89%

59Co Chemical Shift Anisotropy and Quadrupole Coupling for K3Co(CN)6 from MQMAS and MAS NMR Spectroscopy

Nielsen

Jakobsen

2001

Solid State Nuclear Magnetic Resonance

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31P MAS NMR of P4S3. Crystalline-to-plastic phase transition induced by MAS in a double air-bearing stator

Cited by 26 publications

References 13 publications

Temperature Dependence of 207 Pb MAS Spectra of Solid Lead Nitrate. An Accurate, Sensitive Thermometer for Variable-Temperature MAS

Temperature Dependence of 207 Pb MAS Spectra of Solid Lead Nitrate. An Accurate, Sensitive Thermometer for Variable-Temperature MAS

Phosphorus-31 chemical shieldings in a fused cis-1,2,3-benzothiadiphosphole: a dipolar NMR study

59Co Chemical Shift Anisotropy and Quadrupole Coupling for K3Co(CN)6 from MQMAS and MAS NMR Spectroscopy

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