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An octa­hedrally coordinated trialk­ylyttrium(III): tris­(trimethyl­silylmeth­yl)(1,4,7-trimethyl-1,4,7-triaza­cyclo­nona­ne)yttrium(III)

✍ Scribed by Bambirra, Sergio ;Meetsma, Auke ;Hessen, Bart

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
156 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

An octahedrally coordinated trialkylyttrium(III): tris(trimethylsilylmethyl)(1,4,7-trimethyl-1,4,7triazacyclononane)yttrium(III)

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✍ Bambirra, Sergio ;Meetsma, Auke ;Bart Hessen, Bart 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 655 KB

The title compound, [La(C 8 H 9 ) 3 (C 9 H 21 N 3 )], incorporating a fac-3 N ligand and formed by reaction of La(CH 2 C 6 H 4 -4-Me) 3 (THF) 3 (THF is tetrahydrofuran) and 1,4,7-trimethyl-1,4,7-triazacyclononane (Me 3 -TACN), was synthesized in THF solution. In the crystal structure, the La atom is

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Exchange interactions in a trigonal chromium (III) dimer. Optical spectroscopy of tris-(μ-hydroxo)-bis-[(1,4,7-trimethyl-1, 4,7-triazacyclononane) chromium(III)] triperchlorate
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HigIl-resolution absorption, iuminesccnce, Zeeman and MCD experiments were performed cm sir& crystals of the title compound. The singlet-tripiet and trip&t-quintet exchange splittings in the ground state are 138 and 267 cm-'. respectively. The corresponding exchange parameters are 2J= -128 cm-' andj