Steric Consequences on the Conformation of Medium-Sized Rings:  Solution NMR, Solid-State Crystallographic,ab InitioMolecular Orbital Calculations, and Molecular Mechanics Studies on Substituted Eight-Membered Organosilicon Ring Systems1

1997 ◽  
Vol 119 (35) ◽  
pp. 8313-8323 ◽  
Author(s):  
Lilibeth P. Burke ◽  
Anthony D. DeBellis ◽  
Herman Fuhrer ◽  
Hansrudolf Meier ◽  
Stephen D. Pastor ◽  
...  
Keyword(s):  
Solid State ◽  
Molecular Mechanics ◽  
Solution Nmr ◽  
Nmr Solid

scholarly journals Slow Exchange Model of Nonrigid Rotational Motion in RNA for Combined Solid-State and Solution NMR Studies

2010 ◽  
Vol 114 (48) ◽  
pp. 15991-16002 ◽  
Author(s):  
Prashant S. Emani ◽  
Gregory L. Olsen ◽  
Dorothy C. Echodu ◽  
Gabriele Varani ◽  
Gary P. Drobny
Keyword(s):  
Solid State ◽  
Rotational Motion ◽  
Exchange Model ◽  
Solution Nmr ◽  
Nmr Studies ◽  
Slow Exchange

scholarly journals Organofluorine chemistry: Difluoromethylene motifs spaced 1,3 to each other imparts facial polarity to a cyclohexane ring

2016 ◽  
Vol 12 ◽  
pp. 2823-2827 ◽  
Author(s):  
Mathew J Jones ◽  
Ricardo Callejo ◽  
Alexandra M Z Slawin ◽  
Michael Bühl ◽  
David O'Hagan
Keyword(s):  
Solid State ◽  
Design Strategy ◽  
Chair Conformation ◽  
Axial Orientation ◽  
Solution Nmr ◽  
Cyclohexane Ring ◽  
X Ray

2,2-Dimethyl-5-phenyl-1,1,3,3-tetrafluororocyclohexane has been prepared and characterised as an example of a facially polarised cyclohexane containing 1,3 related CF2 groups. The dipolar nature of the ring arises from the axial orientation of two of the C–F bonds pointing in the same direction, and set by the chair conformation of the cyclohexane. This electrostatic profile is revealed experimentally both in the solid-state (X-ray) packing of the rings and by solution (NMR) in different solvents. A computationally derived electrostatic profile of this compound is consistent with a more electronegative and a more electropositive face of the cyclohexane ring. This placing of CF2 groups 1,3 to each other in a cyclohexane ring is introduced as a new design strategy which could be applicable to the preparation of polar hydrophobic cyclohexane motifs.

Solid-state NMR at natural isotopic abundance for the determination of conformational polymorphism – the case of designed β-turn peptides containing di-prolines

2017 ◽  
Vol 53 (7) ◽  
pp. 1317-1320 ◽  
Author(s):  
Jayasubba Reddy Yarava ◽  
Rajesh Sonti ◽  
K. Kantharaju ◽  
S. Raghothama ◽  
K. V. Ramanathan
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Solution Nmr ◽  
Isotopic Abundance ◽  
Conformational Polymorphism ◽  
Natural Isotopic Abundance

Like nOe in solution NMR, through-space proton correlations have been exploited in the solid state to obtain the cis–trans conformational polymorphism.

Solid-State and Solution NMR Studies of the CAP-Gly Domain of Mammalian Dynactin and Its Interaction with Microtubules

2009 ◽  
Vol 131 (29) ◽  
pp. 10113-10126 ◽  
Author(s):  
Shangjin Sun ◽  
Amanda Siglin ◽  
John C. Williams ◽  
Tatyana Polenova
Keyword(s):  
Solid State ◽  
Solution Nmr ◽  
Nmr Studies

scholarly journals High-resolution NMR: Solid-state NMR.

Kobunshi ◽  
1990 ◽  
Vol 39 (12) ◽  
pp. 888-891
Author(s):  
Fumitaka Horii
Keyword(s):  
Solid State ◽  
High Resolution ◽  
Solid State Nmr ◽  
High Resolution Nmr ◽  
Nmr Solid

scholarly journals Hexahalometallate salts of trivalent scandium, yttrium and lanthanum: cation–anion association in the solid state and in solution

2016 ◽  
Vol 40 (8) ◽  
pp. 7181-7189 ◽  
Author(s):  
Martin J. D. Champion ◽  
William Levason ◽  
David Pugh ◽  
Gillian Reid
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Solution Nmr ◽  
Organic Cations ◽  
Nmr Studies ◽  
Lanthanum Cation

The hydrogen bonding of hexahalometallate anions with various organic cations is explored via crystallographic and solution NMR studies.

Reactivity of 2-Pyridinecarboxylic Esters with Cadmium(II) Halides:  Study of113Cd NMR Solid State Spectra and Crystal Structures of Hexacoordinated Complexes [CdI2(C5H4NCOOMe)2] and [CdI2(C5H4NCOOPrn)2]

2003 ◽  
Vol 42 (23) ◽  
pp. 7403-7409 ◽  
Author(s):  
Ricard March ◽  
Josefina Pons ◽  
Josep Ros ◽  
William Clegg ◽  
Angel Álvarez-Larena ◽  
...  
Keyword(s):  
Solid State ◽  
Crystal Structures ◽  
Nmr Solid
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