Snapshots of dioxygen activation by copper:: The structure of a 1:1 Cu/O2 adduct and its use in syntheses of asymmetric bis(μ-oxo) complexes

被引:169
作者
Aboelella, NW
Lewis, EA
Reynolds, AM
Brennessel, WW
Cramer, CJ
Tolman, WB
机构
[1] Univ Minnesota, Ctr Met Biocatalysis, Dept Chem, Minneapolis, MN 55455 USA
[2] Univ Minnesota, Inst Supercomp, Minneapolis, MN 55455 USA
关键词
D O I
10.1021/ja027164v
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The X-ray structure of a 1:1 Cu/O2 adduct revealed side-on (η2) O2 coordination. Density functional calculations corroborated the structure, indicated a significant contribution of a Cu(III)-(O22-) resonance form, and provided insights into the key bonding interactions. Reaction of a 1:1 adduct supported by a slightly different β-diketiminate ligand with Cu(I) reagents resulted in the formation of novel asymmetric bis(μ-oxo) complexes that were identified by EPR, UV-vis, and Raman spectroscopy, as well as by an X-ray structure in one instance. Copyright © 2002 American Chemical Society.
引用
收藏
页码:10660 / 10661
页数:2
相关论文
共 29 条
[1]   Exchange functionals with improved long-range behavior and adiabatic connection methods without adjustable parameters:: The mPW and mPW1PW models [J].
Adamo, C ;
Barone, V .
JOURNAL OF CHEMICAL PHYSICS, 1998, 108 (02) :664-675
[2]  
Becker M, 1999, CHEM-EUR J, V5, P3124, DOI 10.1002/(SICI)1521-3765(19991105)5:11<3124::AID-CHEM3124>3.0.CO
[3]  
2-D
[4]  
Blackman AG, 2000, STRUCT BOND, V97, P179
[5]  
Chaudhuri P, 1999, ANGEW CHEM INT EDIT, V38, P1095, DOI 10.1002/(SICI)1521-3773(19990419)38:8<1095::AID-ANIE1095>3.0.CO
[6]  
2-I
[7]   CRYSTAL-STRUCTURE OF A SIDE-ON SUPEROXO COMPLEX OF COBALT AND HYDROGEN ABSTRACTION BY A REACTIVE TERMINAL OXO LIGAND [J].
EGAN, JW ;
HAGGERTY, BS ;
RHEINGOLD, AL ;
SENDLINGER, SC ;
THEOPOLD, KH .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1990, 112 (06) :2445-2446
[8]   A MONOMERIC SIDE-ON SUPEROXOCOPPER(II) COMPLEX - CU(O-2)(HB(3-TBU-5-IPRPZ)(3)) [J].
FUJISAWA, K ;
TANAKA, M ;
MOROOKA, Y ;
KITAJIMA, N .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (26) :12079-12080
[9]  
GUBELMANN MH, 1983, STRUCT BOND, V55, P1
[10]   Spectroscopic and electronic structural studies of the Cu(III)2 bis-μ-oxo core and its relation to the side-on peroxo-bridged dimer [J].
Henson, MJ ;
Mukherjee, P ;
Root, DE ;
Stack, TDP ;
Solomon, EI .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (44) :10332-10345