Crystal and molecular structure of diphenylboron N-methylacethydroxamate (4,5-dimethyl-2,2-diphenyl-1,3-dioxa-4-azonia-2-boratacyclopent-4-ene)
1978 ◽
Vol 56
(12)
◽
pp. 1676-1680
◽
Keyword(s):
Crystals of diphenylboron N-methylacethydroxamate are orthorhombic, a = 12.5478(8), b = 7.8735(3), c = 13.6809(5) Å, Z = 4, space group Pnam. The structure was solved by direct methods and was refined by full-matrix least-squares procedures to R = 0.037 and Rw = 0.054 for 1265 reflections with I ≥ 3σ(I). The molecule features a five-membered BO2CN ring which lies in the crystallographic mirror plane. The carbon and nitrogen atoms of the heterocyclic ring are positionally disordered. Mean bond lengths (corrected for libration) are: O—B, 1.550(2), B—C, 1.609(2), O—C/N, 1.340(3), C—N, 1.300(2), C/N—CH, 1.470(2), and C—C(phenyl), 1.394(8) Å.
Keyword(s):
1975 ◽
Vol 53
(10)
◽
pp. 1393-1401
◽
Keyword(s):
Keyword(s):
Keyword(s):
Keyword(s):
Keyword(s):
Keyword(s):
1977 ◽
Vol 55
(17)
◽
pp. 3118-3123
◽
Keyword(s):
1977 ◽
Vol 55
(24)
◽
pp. 4206-4210
◽