Spin- and phase transition in the spin crossover complex [Fe(Ptz)6](BF4)2 studied by nuclear inelastic scattering of synchrotron radiation and by DFT calculations

被引:28
作者
Boettger, Lars H.
Chumakov, Aleksandr I.
Grunert, C. Matthias
Guetlich, Philipp [1 ]
Kusz, Joachim
Paulsen, Hauke
Ponkratz, Ulrich
Rusanov, Ventzislav
Trautwein, Alfred X.
Wolny, Juliusz A.
机构
[1] Johannes Gutenberg Univ Mainz, Inst Anorgan Chem & Analyt Chem, D-55099 Mainz, Germany
[2] Med Univ Lubeck, Inst Phys, D-23538 Lubeck, Germany
[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France
[4] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland
[5] Univ Sofia, Dept Atom Phys, BU-1126 Sofia, Bulgaria
[6] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland
关键词
D O I
10.1016/j.cplett.2006.08.004
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
Nuclear inelastic scattering (NIS) spectra of [Fe(PtZ)(6)](BF4)(2) (PtZ = 1-n-propyl-tetrazole) have been measured for five phases differing in spin state and crystallographic structure. Different spectral patterns have been found for the low-spin and high-spin phases and are described in terms of normal coordinate analysis of the complex molecule. For both low-spin and high-spin phases the conversion from ordered to disordered phase results in splitting of the observed NIS bands. Packing becomes visible in the NIS spectra via coupling of the Fe-N stretching vibrations with those of the terminal n-propyl groups. The DFT-based normal coordinate analysis also reveals the character of Raman markers. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:189 / 193
页数:5
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