Mössbauer, magnetic susceptibility, EPR, and EXAFS investigations of the vibrationally-induced low-spin/high-spin transition in a biomimetic Fe(III) complex

1994 ◽  
Vol 90 (1) ◽  
pp. 453-457 ◽  
Author(s):  
Ch. Butzlaff ◽  
E. Bill ◽  
W. Meyer ◽  
H. Winkler ◽  
A. X. Trautwein ◽  
...  
2011 ◽  
Vol 170 ◽  
pp. 9-12
Author(s):  
J. Krok-Kowalski ◽  
Ewa Maciążek ◽  
Tadeusz Groń ◽  
Andrzej W. Pacyna ◽  
Tadeusz Mydlarz ◽  
...  

A high spin (HS) – low spin (LS) transition has been discovered in the Co[Cr0.5Ga1.5]S4 spinel, where the Co ions occupy tetrahedral sites and the Cr and Ga ions octahedral ones. The latter are diluted by the non-magnetic Ga-ions. Application of magnetic fields revealed ferrimagnetic order with a Curie temperature TC = 126 K, a strong suppression of the magnetic susceptibility () and a slight shift of TC to lower temperatures. A cusp at 15.6 K on the ac (T) curve suggests a spin frustration of the re-entrant type. Characteristic for the HS-LS transition is an inflection point at 150 K on the 1/(T) curve, a lack of the Curie-Weiss region above TC and a small value of the magnetization, 4.76 emu/g at 4.4 K and at a magnetic field of 57.5 kOe.


2000 ◽  
Vol 80 (2) ◽  
pp. 155-163 ◽  
Author(s):  
S. Odin, F. Baudelet, E. Dartyge, J. P

CrystEngComm ◽  
2021 ◽  
Vol 23 (15) ◽  
pp. 2854-2861
Author(s):  
Kristian Handoyo Sugiyarto ◽  
Djulia Onggo ◽  
Hiroki Akutsu ◽  
Varimalla Raghavendra Reddy ◽  
Hari Sutrisno ◽  
...  

Mononuclear complex [Fe(3-bpp)2](CF3COO)2 exhibits a thermal (HS + HS) ⇋ (HS + LS) transition at ∼226 K which is not associated with any crystallographic transition.


1977 ◽  
Vol 42 (1) ◽  
pp. 31-35 ◽  
Author(s):  
Satoshi Haneda ◽  
Noriaki Kazama ◽  
Yasuo Yamaguchi ◽  
Hiroshi Watanabe
Keyword(s):  

1981 ◽  
Vol 20 (1) ◽  
pp. 204-207 ◽  
Author(s):  
P. Sambasiva. Rao ◽  
Amikam. Reuveni ◽  
Bruce R. McGarvey ◽  
Prabuddha. Ganguli ◽  
Philipp. Guetlich

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