A THEORETICAL-STUDY ON THE BOND-ENERGY AND THE BONDING NATURE OF DINUCLEAR D(10) METAL-COMPLEXES - PT-2(PH3)(4), PTPD(PH3)(4), AND PD-2(PH3)(4)

被引：15
|
作者：
SAKAKI, S
OGAWA, M
MUSASHI, Y
机构：
[1] Department of Applied Chemistry, Faculty of Engineering, Kumamoto University, Kurokami
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 47期
关键词：
D O I：
10.1021/j100047a015
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Dinuclear d(10) metal complexes such as Pt-2(PH3)(4), PtPd(PH3)(4), and Pd-2(PH3)(4) were theoretically investigated with the ab initio MO method. Size-consistent MP4SDQ and coupled cluster methods yield similar metal-metal bond energy (DE), while the SD-CI method gives the smaller DE value. The DE value decreases in the order Pt(0)-Pt(0) (19) [4.4] > Pt(0)-Pd(0) (16) [4.1] > Pd(0)-Pd(0) (14) [3.8], where the numbers in parentheses and brackets are the DE value (MP4SDQ level; kcal/mol) before and after correction of basis set superposition error (BSSE), respectively. When two PH3 ligands were placed to mimic bis(di-tert-butylphosphino)propane, the DE value of Pt-2(PH3)(4) slightly increases to 22 (13) kcal/mol (MP4SDQ), where the DE value after BSSE correction is given in parentheses. Discussion is presented on basis set effects and correlation effects on DE, electron distribution, and metal-metal bonding nature.
引用
收藏
页码：17134 / 17138
页数：5
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