New principles in metallomesogen structure–magnetism correlations

Citation data:

Inorganic Chemistry Communications, ISSN: 1387-7003, Vol: 5, Issue: 7, Page: 525-526

Publication Year:
2002
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Citations 9
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Repository URL:
http://scholarsmine.mst.edu/chem_facwork/268
DOI:
10.1016/s1387-7003(02)00464-1
Author(s):
Liebsch, Stefan; Oakley, Michael A.; Paschke, Reinhard; Sinn, Ekkehard
Publisher(s):
Elsevier BV; Elsevier
Tags:
Chemistry; Materials Science
article description
Whereas binuclear salicylaldimine complexes and their mononuclear parents are waxlike solids with long chain N-substituents, they are liquid crystalline (mesogenic) when such substituent chains are placed on both the ligand rings and the N-atoms. The structure of the non-mesogenic binuclears is determined via X-ray crystallography, and via the strength of magnetic coupling for the mesogenic ones. In the non-mesogenic binuclears the central metal environments have a marked distortion towards tetrahedral (>36°; scale 0° for planar, 90° for tetrahedral), while in the mesogenic ones, the stronger magnetic coupling indicates that this is closer to planar (25°).