Effective Hamiltonian crystal fields: Present status and applicability to magnetic interactions in polynuclear transition metal complexes

2014 ◽  
Vol 88 (11) ◽  
pp. 1904-1913 ◽  
Author(s):  
A. L. Tchougréeff ◽  
A. V. Soudackov
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Present Status ◽  
Magnetic Interactions ◽  
Effective Hamiltonian ◽  
Crystal Fields

Spin Coupling Interactions in Transition Metal Complexes Containing Radical o-Semiquinone Ligands. A Review

2001 ◽  
Vol 66 (1) ◽  
pp. 33-51 ◽  
Author(s):  
Cortlandt G. Pierpont ◽  
Attia S. Attia
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Metal Ion ◽  
Spin Coupling ◽  
Magnetic Interactions ◽  
Interesting Aspect ◽  
The Past ◽  
Anionic Ligands ◽  
Paramagnetic Metal

Transition metal complexes ofo-semiquinone (SQ) ligands have been studied extensively over the past 25 years. A particularly interesting aspect of this coordination chemistry concerns magnetic interactions between paramagnetic metal ions and the radical anionic ligands. In this review we begin with a survey of relatively simple complexes consisting of a paramagnetic metal ion chelated by a single SQ ligand. Recent studies have revealed the importance of SQ-SQ coupling through diamagnetic metals, and complexes of this class are described in the second section of the review. Both interactions combine to account for the often complicated magnetic properties of complexes containing multiple SQ ligands chelated to a paramagnetic metal ion. Research on these complexes is surveyed in the third section with a concluding look toward polymeric SQ complexes. A review with 51 references.

Mechanochemical changes on cyclometalated Ir(iii) acyclic carbene complexes – design and tuning of luminescent mechanochromic transition metal complexes

2020 ◽  
Vol 7 (3) ◽  
pp. 786-794 ◽  
Author(s):  
Jingqi Han ◽  
Kin-Man Tang ◽  
Shun-Cheung Cheng ◽  
Chi-On Ng ◽  
Yuen-Kiu Chun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Carbene Complexes ◽  
New Class

A new class of luminescent cyclometalated Ir(iii) complexes with readily tunable mechanochromic properties derived from the mechanically induced trans-to-cis isomerization have been developed.

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