Über Antimon-haltige Heterocyclen, V Antimon(III)-dithiolate mit verbrückten 5-und 8-Ringen/On Heterocyclic Systems Containing Antimony, V Antimony(III) Dithiolates with Bridged 5-and 8 -Membered Rings
1986 ◽
Vol 41
(11)
◽
pp. 1455-1460
◽
Keyword(s):
Abstract For diamony(III)-trisdithiolates two constitutions (bicyclic B or two bridged monocycles C) are possible. Two synthetical paths to three examples Sb2(XS2)3 with X = CH2CH2 (1), CH2CH2- O - CH2CH2 (2), CH2CH2- S - CH2CH2 (3) are reported. 13C NMR spectra in CDCl3 solution show the constitution C for 2 and 3, and a possible equilibrium C ⇌ 4:1) for 1. This corresponds to the result of a crystal structure analysis (R = 0.027). The constitution C found in solid 1 exhibits expanded coordination polyhedra around the two antimony atoms which indicate a starting point for rearrangement into the constitution B. The two bridged 5-membered rings have different conformations: envelope and half-chair.
1999 ◽
Vol 54
(7)
◽
pp. 858-862
◽
Keyword(s):
1984 ◽
Vol 39
(6)
◽
pp. 721-726
◽
1979 ◽
Vol 34
(2)
◽
pp. 217-223
◽
Keyword(s):