Structural studies on bio-active compounds. Part 2. The solid-state and solution conformations of N-methyl-2-nitroethenamine and related compounds

1985 ◽  
pp. 251 ◽  
Author(s):  
E. Nicholas Gate ◽  
Michelle A. Meek ◽  
Carl H. Schwalbe ◽  
Malcolm F. G. Stevens ◽  
Michael D. Threadgill
Keyword(s):  
Solid State ◽  
Structural Studies ◽  
Active Compounds ◽  
Solution Conformations ◽  
Related Compounds

Solid-state and solution conformations of methadone hydrochloride and related compounds

1989 ◽  
Vol 27 (4) ◽  
pp. 311-317 ◽  
Author(s):  
Susan C. J. Sumner ◽  
Charles G. Moreland ◽  
F. Ivy Carroll ◽  
George A. Brine ◽  
Karl G. Boldt
Keyword(s):  
Solid State ◽  
Solution Conformations ◽  
Related Compounds

Zum Mineral Johillerit verwandte Oxovanadate RbCd4V3O12 und TlCd4V3O12 / Oxovanadates RbCd4V3O12 and TlCd4V3 O12 Related to the Mineral Johillerite

1997 ◽  
Vol 52 (5) ◽  
pp. 663-668 ◽  
Author(s):  
B. Mertens ◽  
Hk. Müller-Buschbaum
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Single Crystals ◽  
Solid State Reactions ◽  
Space Group ◽  
Related Compounds

Abstract Single crystals of I RbCd4V3O12 and TlCd4V3O12 II have been prepared by solid state reactions in closed iron tubes. The compounds crystallize closely related to the Johillerite structure in the space group C62h- C2/c with I: a = 13.058(3); b - 13.528(3), c = 7 .0 6 0 (2 )Å , β = 114.88(2)°; II: a = 12.999(6), b = 13.527(7), c = 7.055(3) Å , β = 114.88(4)°, Z = 4. Special features are the loss of Cu2+ in order to gain an additional Cd2+ position. The crystal structure is discussed with respect to related compounds of the Johillerite type.

Structural studies of oriented zirconium bis(phosphonoacetic acid) using solid-state phosphorus-31 and carbon-13 NMR

1992 ◽  
Vol 114 (11) ◽  
pp. 4144-4150 ◽  
Author(s):  
David A. Burwell ◽  
Kathleen G. Valentine ◽  
Jozef H. Timmermans ◽  
Mark E. Thompson
Keyword(s):  
Solid State ◽  
Structural Studies ◽  
Phosphonoacetic Acid

Two organophosphorus pesticides: methyl parathion and dicapthon

2014 ◽  
Vol 70 (10) ◽  
pp. 975-977
Author(s):  
Russell G. Baughman ◽  
Gabriel B. Hall
Keyword(s):  
Torsion Angle ◽  
Methyl Parathion ◽  
Organophosphorus Pesticides ◽  
Angular Distortion ◽  
Dihedral Angles ◽  
Structural Studies ◽  
Related Compounds

Structural studies performed in this laboratory of organophosphorus pesticides continue with these related compounds. The –NO2groups of methyl parathion (systematic name: dimethyl 4-nitrophenyl phosphorothioate, C8H10NO5PS) and dicapthon (systematic name: 2-chloro-4-nitrophenyl dimethyl phosphorothioate, C8H9ClNO5PS) make dihedral angles of 10.67 (8) and 5.8 (1)°, respectively, with the planes of their attached rings, which accompanies angular distortion at the ring C atoms to which the –NO2groups are attached. Similar distortions are observed at the C atom to which the thiophosphate groups are attached. Significant differences in distances and angles around the phenolic O,versusthe –OMe groups, explain why it is the site of hydrolysis for these compounds. A comparison of a torsion angle involving the thiophosphate group and phenolic O atom with similar pesticide structures is given and indicates steric influences on that angle.

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