STRUCTURE CHANGES AND THE SPIN PHASE-TRANSITION MECHANISM OF A SPIN CROSSOVER COMPLEX, [FE(2-PIC)3]CL2.ETOH

被引:87
作者
MIKAMI, M
KONNO, M
SAITO, Y
机构
[1] Institute for Solid State Physics, University of Tokyo, Minato-ku, Tokyo, Roppongi
关键词
D O I
10.1016/0009-2614(79)80715-0
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
The crystal structure of the spin crossover complex [Fe(2-pic)3]Cl2·EtOH in its high spin state (298, 150 K) and low spin state (90 K) has been determined. The crystals are monoclinic, P21/c with Z=4 in the two spin states. Pronounced changes in the FeN bond distance (2.195 A for high spin, 2.013 A for low spin on average) and orientational disorder of the ethanol molecule were observed. The complexes and ethanols are both hydrogen bounded to Cl- ions. © 1979.
引用
收藏
页码:566 / 569
页数:4
相关论文
共 9 条
[1]   HIGH-SPIN AND LOW-SPIN ALPHA-PICOLYLAMINE IRON(II) COMPLEXES - EFFECT OF LIGAND REVERSAL ON SPIN STATE [J].
GREENAWAY, AM ;
SINN, E .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1978, 100 (26) :8080-8085
[2]  
GUTLICH P, COMMUNICATION
[3]   The Fe-N bond lengths, the "ionic radii" of iron (II), and the crystal field parameters (10Dq) in a high-spin and low-spin [Fe-II-N-6] complex [J].
Koenig, Edgar ;
Watson, K. J. .
CHEMICAL PHYSICS LETTERS, 1970, 6 (05) :457-459
[4]  
MIKAMI M, UNPUBLISHED
[5]   SPIN EQUILIBRIUM IN TRIS(2-AMINOMETHYLPYRIDINE)IRON(2) HALIDES [J].
RENOVITCH, GA ;
BAKER, WA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1967, 89 (24) :6377-+
[6]   EFFECTIVE IONIC RADII IN OXIDES AND FLUORIDES [J].
SHANNON, RD ;
PREWITT, CT .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL CRYSTALLOGRAPHY AND CRYSTAL CHEMISTRY, 1969, B 25 :925-&
[7]   MOSSBAUER-EFFECT STUDY ON LOW-SPIN A-1(1) REVERSIBLE HIGH-SPIN T-5(2) TRANSITION IN TRIS(2-PICOLYLAMINE) IRON CHLORIDE .1. DILUTION EFFECT IN [FEXZN1-X(2-PIC)3]CL2.C2H5OH [J].
SORAI, M ;
ENSLING, J ;
GUTLICH, P .
CHEMICAL PHYSICS, 1976, 18 (1-2) :199-209
[8]   MOSSBAUER-EFFECT STUDY ON LOW-SPIN 1A1 REVERSIBLE HIGH-SPIN 5T2 TRANSITION IN [FE(2-PIC)3]CL2 .2. INFLUENCE OF NON-COORDINATING SOLVENT MOLECULE IN [FE(2-PIC)3]CL2.X,X=C2H5OH,CH3OH,H2O AND 2H2O [J].
SORAI, M ;
ENSLING, J ;
HASSELBACH, KM ;
GUTLICH, P .
CHEMICAL PHYSICS, 1977, 20 (02) :197-208
[9]   PHONON COUPLED COOPERATIVE LOW-SPIN A-1 (1) REVERSIBLE HIGH-SPIN T-5(2) TRANSITION IN [FE(PHEN)2(NCS)2] AND [FE(PHEN)2(NCSE)2] CRYSTALS [J].
SORAI, M ;
SEKI, S .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1974, 35 (04) :555-570