CHROMIUM-CENTERED IMIDO GROUP-TRANSFER

Authors
LEUNG WH WU MC LAU TC WONG WT
Citation
Wh. Leung et al., CHROMIUM-CENTERED IMIDO GROUP-TRANSFER, Inorganic chemistry, 34(16), 1995, pp. 4271-4274
Citations number
16
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Inorganic chemistry → ACNP
ISSN journal
00201669
Volume
34
Issue
16
Year of publication
1995
Pages
4271 - 4274
Database
ISI
SICI code
0020-1669(1995)34:16<4271:CIG>2.0.ZU;2-0
Abstract
Treatment of [Cr(N-t-Bu)(2)Cl-2] with terpy and AgBF4 have structurall y characterized [Cr(N-t-Bu)(2)(terpy)](BF4)(2) (1) The imido transfer reaction of 1 with excess PMe(3) follows biphasic kinetics with rate e xpressions rate = k(2) [Cr][PMe(3)] and rate = k(3)[Cr][PMe(3)](2) for the first and second steps, respectively. At 25.0 degrees C in CH3CN k(2) = 0.48 +/- 0.1 M(-1) s(-1) and k(3) = 1.44 +/- 0.16 M(-2) S-1. Th e Cr(VI)/Cr(V) formal potential for 1 in CH3CN was determined to be -0 .74V vs Cp(2)Fe(+10).