Ein Zwölfring mit Phosphor(V), Kohlenstoff und Dimethylhydrazin als Ringbausteinen und grossen endocyclischen Torsionswinkeln um die N–N-Bindungen
作者:U. Engelhardt、M. Rosefid
DOI:10.1107/s0108270193008844
日期:1994.5.15
1,2,4,5,7,8, 10,11-Octamethyl-6,12-dioxo-3,9-diphenoxy-1,2,4,5,7,8,10,11,-octaaza-3lambda5,9lambda5-diphospha-cyclododecan 3,9-disulfide (1) is the dimer of the expected product of the reaction of bis(1,2-dimethylhydrazido) thiophosphoric acid phenyl ester with ethyl chloroformate. The title compound is the Z isomer. The 12-membered ring has a strongly puckered conformation with endocyclic P-N-N-C torsion angles from -84(1) to - 106.8(9)degrees and C-N-N-C torsion angles from -73(1) to -76 (1)degrees. The mean N-N bond distance of 1.40 (1) angstrom is at the lower end of the observed range in smaller P(V)-hydrazine rings.