Electron structure of organometal complexes of F-elements .37. Electron structure of Pr3+ psi-trigonal bipyramidal organic coordination

被引：23

作者：

Amberger, HD

Schulz, H

Reddmann, H

Jank, S

Edelstein, N

Qian, C

Wang, B

机构：

[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV CHEM SCI,BERKELEY,CA 94720

[2] ACAD SINICA,SHANGHAI INST ORGAN CHEM,ORGANOMET CHEM LAB,SHANGHAI 200032,PEOPLES R CHINA

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1996年 / 52卷 / 04期

关键词：

crystal field theory; magnetism; optical and magnetooptical spectra; praseodymium (III) metallocenes;

D O I：

10.1016/0584-8539(95)01591-4

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

By doping a Cp(3)La(NCCH3)(2) matrix with different amounts of Pr3+, relatively stable Cp(3)La(1-x)Pr(x)(NCCH3)(2) (1) (x = 0.6, 0.3, 0.1) single crystals have been grown. On the basis of absorption, luminescence and, in part, magnetic circular dichroism spectroscopic measurements, the crystal field (CF) splitting pattern of 1 and also of (CH3OCH2CH2C5H4)(3)Pr (2) could be derived, The parameters of an empirical Hamiltonian were fitted to the energies of 25 and 24 levels, respectively, to give r.m.s. derivations of 27 and 24 cm(-1) for 1 and 2. The experimentally determined temperature dependences of the paramagnetic susceptibility of powdered Cp(3)Pr(NCCH3)(2) and 2 were simulated from the eigenvalues and wavefunctions obtained using the empirically determined ''best fit'' parameters.

引用

页码：429 / 440

页数：12

共 26 条

[1] THE ELECTRONIC-STRUCTURE OF ORGANOMETALLIC COMPLEXES OF THE F-ELEMENTS .11. ABSORPTION-SPECTRUM AND PARAMETERIZATION OF THE CRYSTAL-FIELD SPLITTING PATTERN OF A METHYLTETRAHYDROFURAN ADDUCT DERIVED FROM TRIS(ETA-5-CYCLOPENTADIENYL)-PRASEODYMIUM(III) [J].