Titanium(IV) complexes of trianionic amine triphenolate ligands

被引：93
作者：
Kol, M [1 ]
Shamis, M
Goldberg, I
Goldschmidt, Z
Alfi, S
Hayut-Salant, E
机构：
[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Chem, IL-69978 Tel Aviv, Israel
[2] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
[3] Coll Judea & Samaria, IL-44837 Ariel, Israel
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2001年 / 4卷 / 04期
基金：
以色列科学基金会;
关键词：
phenolate ligands; tripodal ligands; titanium complexes; X-ray structure;
D O I：
10.1016/S1387-7003(01)00157-5
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two trianionic amine triphenolate ligands are introduced and their isopropoxide Ti(IV) complexes synthesized. The two complexes are mononuclear and C-3-symmetrical on the NMR timescale. High barriers to inversion (DeltaG double dagger > 65 KJ mol(-1)) between the enantiomers of each complex were found. The complex derived from the bulkier tripodal ligand shows a better resistance to hydrolysis. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：177 / 179
页数：3
相关论文
共 14 条
  • [1] A new class of silatranes: Structure and dynamic NMR behavior
    Chandrasekaran, A
    Day, RO
    Holmes, RR
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (06) : 1066 - 1072
  • [2] Dargaville TR, 1997, J POLYM SCI POL CHEM, V35, P1389
  • [3] Taming early transition metals: the use of polydentate amido-donor ligands to create well defined reactive sites in reagents and catalysts
    Gade, LH
    [J]. CHEMICAL COMMUNICATIONS, 2000, (03) : 173 - 181
  • [4] Gunther H., 1980, NMR Spectroscopy: An Introduction
  • [5] The coordination chemistry of amine triphenolate tripod ligands with iron(III). Old organic compounds but new tripod ligands
    Hwang, J
    Govindaswamy, K
    Koch, SA
    [J]. CHEMICAL COMMUNICATIONS, 1998, (16) : 1667 - 1668
  • [6] Moberg C, 1998, ANGEW CHEM INT EDIT, V37, P248, DOI 10.1002/(SICI)1521-3773(19980216)37:3<248::AID-ANIE248>3.0.CO
  • [7] 2-5
  • [8] The Gallium(III) and Indium(III) complexes of tris(2-mercaptobenzyl)amine and tris(2-hydroxybenzyl)amine
    Motekaitis, RJ
    Martell, AE
    Koch, SA
    Hwang, JW
    Quarless, DA
    Welch, MJ
    [J]. INORGANIC CHEMISTRY, 1998, 37 (22) : 5902 - 5911
  • [9] NEW TITANATRANES AND AN UNEXPECTED REACTIVITY TREND IN (DIALKYLAMIDO)TITANATRANES
    NAIINI, AA
    RINGROSE, SL
    SU, Y
    JACOBSON, RA
    VERKADE, JG
    [J]. INORGANIC CHEMISTRY, 1993, 32 (07) : 1290 - 1296
  • [10] Transition metal complexes that contain a triamidoamine ligand
    Schrock, RR
    [J]. ACCOUNTS OF CHEMICAL RESEARCH, 1997, 30 (01) : 9 - 16
12