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Phosphoraneiminato complexes of zirconium: Crystal structures of [ZrCl3(NPPh3)(HNPPh3)2] and [ZrCl2(NPPh3)2(HNPPh3)2]

Title data

Gröb, Thorsten ; Geiseler, Gertraud ; Harms, Klaus ; Greiner, Andreas ; Dehnicke, Kurt:
Phosphoraneiminato complexes of zirconium: Crystal structures of [ZrCl3(NPPh3)(HNPPh3)2] and [ZrCl2(NPPh3)2(HNPPh3)2].
In: Zeitschrift für anorganische und allgemeine Chemie. Vol. 628 (January 2002) Issue 1 . - pp. 217-221.
ISSN 0044-2313
DOI: https://doi.org/10.1002/1521-3749(200201)628:1<217::AID-ZAAC217>3.0.CO;2-G

Official URL: Volltext

Abstract in another language

The phosphoraneiminato complexes ZrCl3-(NPPh3)(HNPPh3)(2)] (1) and ZrCl2(NPPh3)(2)(HNPPh3)(2)] (2) have been obtained by reaction of ZrCl4(THF)(2)] with CsNPPh3](4) in THF solution to give colourless moisture sensitive crystals which are characterized by X-ray structure de-terminations. ZrCl3(NPPh3)(HNPPh3)(2)] (1): Space group P(1) over bar, Z = 2, lattice dimensions at 193 K: a = 1209.4(2); b = 1480.8(2), c =: 1814.2(2) pm; alpha = 71.203(13)degrees, beta = 71.216(13)degrees, gamma = 74.401(13)degrees; R = 0.0476. The zirconium atom of 1 is oktahedrally coordinated by the three chlorine atoms in meridional arrangement and by the three nitrogen atoms of the (NPPh3-) ligand and of the two phosphane imine molecules HNPPh3. The ZrN bond distance of the (NPPh3-) group (193.5 pm) corresponds with a double bond. ZrCl2(NPPh3)(2)(HNPPh3)(2)] (2): Space group P(1) over bar, Z = 4, lattice dimensions at 193 K: a = 1447.6(2); b = 1925.7(2), c = 2457.0(2) pm, alpha = 67.317(12)degrees, beta = 87.376(12)degrees, gamma = 87.103(13)degrees; R = 0.0408. The zirconium atom in 2 is octahedrally coordinated by the two chlorine atoms in trans position, and by the nitrogen atoms of the two (NPPh3-) groups as well as by the two HNPPh3 molecules. The ZrN distance of the (NPPh3-) ligands (198.9 and 202.0 pm) suggest some pi-interaction between the zirconium and the nitrogen atoms.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: phosphoraneiminato complexes; phosphaneimine complexes; zirconium; crystal structure
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 08 Apr 2015 09:44
Last Modified: 08 Apr 2015 09:44
URI: https://eref.uni-bayreuth.de/id/eprint/9829