ISSN:
0044-2313
Keywords:
GdIII trigonal prismatic complexes
;
synthesis
;
crystal structure
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
On the Reaction of the Lanthanides with Chelate Ligands Synthesis and Crystal Structure of [(py2CH)3Gd]GdBr3 reacts with [(py2CH)Li] to the mononuclear complex [(py2CH)3Gd] 1.The structure of 1 was characterized by X-ray single crystal structure analysis. Space group P21, Z = 2, a = 951.4(10) pm, b = 1369.4(10) pm, c = 1074.5(10) pm, β = 105.69(8)°.The Gd-Ion is surrounded by the six nitrogen atoms of the three chelate ligands and shows a distorted trigonal prismatic coordination. As a difference to the lithium salt of the ligand, the six-membered metalla-cycles in 1 are not planar, but show a boat conformation.
Notes:
GdBr3 reagiert mit [(py2CH)Li] zu dem einkernigen Komplex [(py2CH)3Gd] 1.Der Aufbau von 1 wurde durch eine Kristallstrukturanalyse geklärt: Raumgruppe P21, Z = 2, a = 951,4(10) pm, b = 1369,4(10) pm, c = 1074,5(10) pm, β = 105,69(8)°.Das Gd-Ion ist von den sechs Stickstoff-Atomen der drei Chelatliganden koordiniert und besitzt eine verzerrt trigonalprismatische Umgebung. Die in 1 gebildeten Metalla-Sechsringe sind im Gegensatz zum Lithiumsalz des Liganden nicht planar, sondern zeigen Wannenkonformation.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19956210606
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