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Crystal and molecular structures of diastereomeric 2-phosphoryl-, 2-thiophosphoryl-, and 2-selenophosphoryl-substituted 1,3-dithianes

✍ Scribed by Michał W. Wieczorek; Grzegorz D. Bujacz; Wiesław R. Majzner; Piotr P. Graczyk; Marian Mikołajczyk

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
690 KB
Volume
6
Category
Article
ISSN
1042-7163

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✦ Synopsis

H3C

diastereomeric cis-and trans-2-phosphoryl-, 2-thiodithianes have been determined. A 6 1.810

For all the examined compounds, all of the basic geometrical parameters, such as bond lengths, bond and torsion angles, and the deformation of a chair confonnation of the six-membered heterocyclic rings, have been established. The differences in corresponding bond lengths and valence angles in diastereomeric cis-and trans-2-P-substituted 1 ,Idithianas are discussed.

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## Abstract Diphenyl[1,3‐benzodithiolyl‐(2)]‐phosphinoxide crystallizes in the monoclinic space group P 2~1~/c with four molecules per unit cell. The lattice parameters are __a__ = 9.600 Å, __b__ = 11.270 Å, __c__ = 16.484 Å; β = 99.72°. With X‐ray diffraction data collected at an automatic four ci