TY - JOUR
T1 - Sterically-induced low temperatur polyhedral rearrangements of carbaplatinaboranes: Synthesis and crystal structures of 1-Ph-3,3-(PMe2Ph)2-3,1,2-PtC2B9H10, 1-Ph-3,3-(PMe2Ph)2-3,1,11-PtC2B9H10, 11-Ph-3,3-(PMe2Ph)2-3,1,11-PtC2B9H10 and 1,11-Ph2-3,3-(PMe2Ph)2-3,1,11-PtC2B9H9
AU - Baghurst, David R.
AU - Copley, Royston C. B.
AU - Fleischer, Holm
AU - P. Mingos, D. Michael
AU - Kyd, Gwenda O.
AU - Yellowlees, Lesley J.
AU - Welch, Alan J.
AU - Spalding, Trevor R.
AU - O'Connell, Donnacha
PY - 1993/4/6
Y1 - 1993/4/6
N2 - Title full: Sterically-induced low temperatur polyhedral rearrangements of carbaplatinaboranes: Synthesis and crystal structures of 1-Ph-3,3-(PMe2Ph)2-3,1,2-PtC2B9 H10, 1-Ph-3,3-(PMe2Ph)2-3,1,11-PtC2B9 H10, 11-Ph-3,3-(PMe2Ph)2-3,1,11-PtC2B9 H10 and 1,11-Ph2-3,3-(PMe2Ph)2-3,1,11-PtC2 B9H9. Reaction of cis-Pt(PMe2Ph)2Cl2 with Tl2[7-Ph-7,8-nido-C2B9H10] affords 1-Ph-3,3-(PMe2Ph)2-3,1,2-PtC2B9 H10, mild thermolysis (55°C) of which yields 1-Ph-3,3-(PMe2Ph)2-3,1,11-PtC2B9 H10 and 11-Ph-3,3-(PMe2Ph)2-3,1,11-PtC2B9 H10. Both of the latter compounds are produced by the microwave irradiation of a mixture of cis-Pt(PMe2Ph)2Cl2 and [HNMe3][7-Ph-7,8-nido-C2B9H11 ]. When cis-Pt(PMe2Ph)2Cl2 is allowed to react with Tl2[7,8-Ph2-7,8-nido-C2B9H 9] at room temperature the only isolable species is 1,11-Ph2-3,3-(PMe2Ph)2-3,1,11-PtC2 B9H9. The generation of rearranged products with 3,1,11-PtC2B9 architectures is inconsistent with a diamond-square-diamond mechanism for the isomerisation of icosahedral heteroboranes.
AB - Title full: Sterically-induced low temperatur polyhedral rearrangements of carbaplatinaboranes: Synthesis and crystal structures of 1-Ph-3,3-(PMe2Ph)2-3,1,2-PtC2B9 H10, 1-Ph-3,3-(PMe2Ph)2-3,1,11-PtC2B9 H10, 11-Ph-3,3-(PMe2Ph)2-3,1,11-PtC2B9 H10 and 1,11-Ph2-3,3-(PMe2Ph)2-3,1,11-PtC2 B9H9. Reaction of cis-Pt(PMe2Ph)2Cl2 with Tl2[7-Ph-7,8-nido-C2B9H10] affords 1-Ph-3,3-(PMe2Ph)2-3,1,2-PtC2B9 H10, mild thermolysis (55°C) of which yields 1-Ph-3,3-(PMe2Ph)2-3,1,11-PtC2B9 H10 and 11-Ph-3,3-(PMe2Ph)2-3,1,11-PtC2B9 H10. Both of the latter compounds are produced by the microwave irradiation of a mixture of cis-Pt(PMe2Ph)2Cl2 and [HNMe3][7-Ph-7,8-nido-C2B9H11 ]. When cis-Pt(PMe2Ph)2Cl2 is allowed to react with Tl2[7,8-Ph2-7,8-nido-C2B9H 9] at room temperature the only isolable species is 1,11-Ph2-3,3-(PMe2Ph)2-3,1,11-PtC2 B9H9. The generation of rearranged products with 3,1,11-PtC2B9 architectures is inconsistent with a diamond-square-diamond mechanism for the isomerisation of icosahedral heteroboranes.
UR - http://www.scopus.com/inward/record.url?scp=0002095849&partnerID=8YFLogxK
U2 - 10.1016/0022-328X(93)80258-D
DO - 10.1016/0022-328X(93)80258-D
M3 - Article
AN - SCOPUS:0002095849
SN - 0022-328X
VL - 447
SP - C14-C17
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 2
ER -