Absorption spectrum of octahedral CoCl4(H2O)2 units in [(CH3)3NH]CoCl3·2H2O single crystal |
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| Authors: | Trevor R Griffiths S V J Lakshman A Varada Rajulu |
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| Institution: | (1) Department of Inorganic and Structural Chemistry, University of Leeds, LS2 9JT Leeds, UK;(2) Department of Physics, Sri Venkateswaru University, 517 502 Tirupati, India;(3) Department of Physics, Sri Krishnadevaraya University, 515 003 Anatapur, India |
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| Abstract: | The optical absorption spectrum of the octahedral moiety CoCl4(H2O)2 in single crystal (CH3)3NH]CoCl3·2H2O has been studied at room and liquidair temperatures. The observed ambient bands at 6800, 16,300, and 19,000 cm–1 have been assigned, respectively, to the transitions4
T
1(F)  4
T
2(F),4
A
2(F), and4
T
1 (P). The crystal field parameters evaluated areD
q
=B=850 cm–1, andC=4.63B. At liquid-air temperatures the4
T
1(P) band is seen to split into the expected four components
7,
8,
8, and
6, due to spin-orbit coupling, and the coupling coefficient was computed to be 525 cm–1. |
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| Keywords: | |
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