Structural investigations of calcium binding molecules. I. Crystal and molecular structures of ethane-1-hydroxy-1,1-diphosphonic acid monohydrate, C(CH3)(OH)(PO3H2)2.H2O

1972 ◽  
Vol 76 (9) ◽  
pp. 1298-1304 ◽  
Author(s):  
V. A. Uchtman ◽  
R. A. Gloss
Keyword(s):  
Calcium Binding ◽  
Molecular Structures ◽  
Diphosphonic Acid ◽  
Structural Investigations ◽  
Crystal And Molecular Structures

Strukturuntersuchungen an Vierringsystemen, III* Kristall- und Molekülstrukturen von trans-2.4-Bis(trimethylsilyl)-2.4-dihydro- 1.3-dithietan-1.1.3.3-tetroxid, 2.2.4.4-Tetramethyl-3-pyrrolidinocyclobutanon und 2.2.4.4-Tetramethyl-1-phenyl-3-pyrrolidinoeyelobutanol/Structural Investigations on Four-Membered Ring Systems, III* Crystal and Molecular Structures of trans-2,4-Bis(trimethylsilyl)-2,4-dihydro-1,3-dithietane-1,1,3,3-tetroxide, 2,2,4,4-Tetramethyl-3-pyrrolidinocyclobutanone and 2,2,4,4-Tetramethyl-1-phenyl-3-pyrrolidinocyclobutanol

1982 ◽  
Vol 37 (8) ◽  
pp. 1005-1013 ◽  
Author(s):  
Barbara Balbach ◽  
Reinhold Alt ◽  
Manfred L. Ziegler
Keyword(s):  
Phenyl Group ◽  
Molecular Structures ◽  
Hydroxyl Group ◽  
Equatorial Position ◽  
Pyrrolidine Ring ◽  
Structural Investigations ◽  
X Ray ◽  
Crystal And Molecular Structures ◽  
In Trans ◽  
Ray Methods

Abstract The molecular structures of the title compounds have been determined by X-ray methods. In the bis(trimethylsilyl) substituted dithietane the (CH3)3Si groups are in trans position; the C2S2-ring is planar. In the cyclobutanone the pyrrolidine group occupies an equatorial position, as does the phenyl group in the cyclobutanol. In the latter the hydroxyl group is trans to the pyrrolidine ring. The four-membered carbon rings are folded.

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