REVERSIBLE YTTRIUM ALKYNIDE COUPLING SUPPORTED BY DAC (DEPROTONATED 4,13-DIAZA-18-CROWN-6) LIGATION

Authors
LEE L BERG DJ BUSHNELL GW
Citation
L. Lee et al., REVERSIBLE YTTRIUM ALKYNIDE COUPLING SUPPORTED BY DAC (DEPROTONATED 4,13-DIAZA-18-CROWN-6) LIGATION, Organometallics, 14(11), 1995, pp. 5021-5023
Citations number
22
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Organometallics → ACNP
ISSN journal
02767333
Volume
14
Issue
11
Year of publication
1995
Pages
5021 - 5023
Database
ISI
SICI code
0276-7333(1995)14:11<5021:RYACSB>2.0.ZU;2-8
Abstract
The reaction of Y(DAC)(CH(2)SiMe(3)) (1) with phenylacetylene produces an equilibrium mixture of the alkynide-coupled butatrienediyl complex [Y(mu-DAC)](2)(mu(Z)-PhC=C=C=CPh) (2) and the uncoupled bridging alky nide dimer [(DAC)Y(mu-C=CPh)](2) (3). Unlike other butatrienediyl comp lexes of yttrium or the lanthanides, this unit adopts a Z conformation , in complex 2.