Dynamics of a [2]rotaxane wheel in a crystalline molecular solid

2021 ◽  
Author(s):  
Giorgio Baggi ◽  
Benjamin H. Wilson ◽  
Ayan Dhara ◽  
Christopher, A. O’Keefe ◽  
Robert W. Schurko ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
Large Amplitude ◽  
Variable Temperature ◽  
Crystalline Material ◽  
Large Amplitude Motion ◽  
Molecular Solid ◽  
Nuclear Magnetic

A highly crystalline material comprised of [2]rotaxanes shows large amplitude motion of the interlocked macrocycle as evidenced by variable-temperature (VT) 2H solid-state nuclear magnetic resonance (SSNMR).

The thermodynamics of orientational disorder in a molecular solid: (CH3)3CCHO

1988 ◽  
Vol 66 (4) ◽  
pp. 729-733 ◽  
Author(s):  
Mary Anne White ◽  
Allyson Perrott
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Heat Capacity ◽  
Phase Transitions ◽  
Solid State ◽  
Magnetic Resonance ◽  
Thermodynamic Parameters ◽  
Solid Phase ◽  
Orientational Disorder ◽  
Molecular Solid ◽  
Nuclear Magnetic

The heat capacity of tert-butylaldehyde, (CH3)3CCHO, has been measured as a function of temperature from 29 to 298 K, to investigate solid-state polymorphism. There are two solid–solid phase transitions in this material, Ttr = 158.5 and 183.9 K, ΔStr = 0.402 R and 3.153 R respectively. The thermodynamic parameters for the transitions are consistent with mechanisms proposed on the basis of recent nuclear magnetic resonance investigations of this material.

scholarly journals Search for Axionlike Dark Matter Using Solid-State Nuclear Magnetic Resonance

2021 ◽  
Vol 126 (14) ◽  
Author(s):  
Deniz Aybas ◽  
Janos Adam ◽  
Emmy Blumenthal ◽  
Alexander V. Gramolin ◽  
Dorian Johnson ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Dark Matter ◽  
Solid State ◽  
Magnetic Resonance ◽  
Nuclear Magnetic
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