Synthese und kristallstruktur von 2-tert-butyl-4-aryl-5.6-dihydro-naphtho- 1.2 -b -Phosphorin.

Structure of η5-cyclopentadienyl(η6-2,4,6-triphenylphosphorin)manganese(I)

“…The phenyl rings are rotated around the C(phenyl)-C(phosphorin) bonds by angles between 31.6 and 42.2 ° to minimize steric interactions; these angles are also in the range found for (B). The mean value of the P-C bonds, 1.764 (3) A, is comparable to that found in (B) and in other compounds such as phosphaferrocene, 1.763 (5), (Mathey, Mitschler & Weiss, 1977) (16) C (12) C (17) C(121 phaferrocene, 1.767 (2)A, (de Lauzon, Deschamps, Fischer, Mathey & Mitschler, 1980) and probably not significantly different from what has been found in the complex PCsHE(C6Hs)3Cr(CO)5 (C) or in uncomplexed phosphorins (Fischer, Hellner, Chatzidakis & Dimroth, 1968;Bart & Daly, 1968;Wong & Bartell, 1974). PL 1: The C(phosphorin)-C(phosphorin) bond length has a mean value of 1.446 (3) A, of the same order as that found in complex (B), 1.457 (7)A, and slightly larger than the mean value found in complex (C) as well as in uncomplexed phosphorins (ca 1.40A).…”

4-(p-Methylthio)phenyl-2,6-diphenyl phosphinine: The first X-ray crystal structure of a λ3-triaryl-phosphabenzene

“…8 Compound 1 was further converted into the corresponding dark-red pyrylium salt 2 16 by reaction with acetophenone and HBF 4 ·Et 2 O. Subsequently, treatment with P(SiMe 3 ) 3 7 gave the methylthio-functionalized phosphabenzene 3 (Scheme 2).…”

“…In summary, we have synthesized the new donor functionalized methylthio-phosphabenzene 3 by reaction of the corresponding pyrylium salt with P(SiMe 3 ) 3 . This compound was characterized crystallographically, showing eight independent molecules in the asymmetric unit.…”

“…Up to now, a few λ 3 -phosphabenzenes and their corresponding transition-metal complexes have been characterized crystallographically. 3 However, an X-ray crystal structure analysis of the original compound reported by Märkl, the 2,4,6-triphenylphosphabenzene, has still remained elusive, even though attempts have been made before.…”

The crystal and molecular structure of 1,1-bis(dimethylamino)-2,4,6-triphenylphosphorin

“…Crystallographic studies of some phosphorins have been reported (Bart & Daly, 1968;Fischer, Hellner, Chatzidakis & Dimroth, 1968;Daly & M/irkl, 1969;Thewalt, 1969;Daly, 1970). In this paper we report the crystal and molecular structure of 1,1-bis(dimethylamino)-2,4,6-triphenylphosphorin (Fig.…”