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Reaktionen der Hydrazid‐verbrückten Cluster HRu 3 (CO) 9 (RN—NR 2 ) mit Alkinen
Author(s) -
Hansert Bernhard,
Vahrenkamp Heinrich
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931260908
Subject(s) - chemistry , hydrazide , cluster (spacecraft) , ligand (biochemistry) , stereochemistry , yield (engineering) , molecule , medicinal chemistry , organic chemistry , biochemistry , receptor , computer science , programming language , materials science , metallurgy
Reactions of the Hydrazide‐Bridged Clusters HRu 3 (CO) 9 (RN—NR 2 ) with Alkynes The clusters HRu 3 (CO) 9 (RN—NR 2 ) ( 1 ) with triply bridging hydrazide ligands (RN—NR 2 = MeN—NHMe, HN—NHMe, HN—NMe 2 ) undergo reactions with the alkynes HCCPh and PhCCPh to yield three cluster products in each case. One of them ( 2 ) is presumed to result from Ru—H insertion with concomitant cluster opening. The second ( 3 ) contains an open Ru 3 cluster bridged by a unique μ 3 ‐η 2 ‐vinyl ligand, as shown by a structure determination. The third ( 4 ) represents the expected simple reaction product with a s̀,‐bound vinyl ligand, again proved by a structure determination. Cluster type 3 is converted to cluster type 2 by CO addition.