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Published April 21, 2006 | Version public
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Complexes of iron and cobalt with new tripodal amido-polyphosphine hybrid ligands

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Abstract

Divalent complexes of iron and cobalt with new, monoanionic tripodal amido-polyphosphine ligands have been thoroughly characterized, and XRD analysis reveals geometries that are distinct for this class of ligand.

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© Royal Society of Chemistry 2006 Received (in Berkeley, CA, USA) 14th November 2005, Accepted 1st March 2006. First published on the web 10th March 2006 We acknowledge the NIH (GM 070757 to JCP) for financial support of this work. MTW is grateful to the Moore Foundation for a graduate fellowship. Neal Mankad and Larry Henling provided crystallographic assistance. Electronic supplementary information (ESI) available: Synthetic protocols and characterization data; crystallographic data. See DOI: 10.1039/b516046d Details of the X-ray diffraction studies: 1, C56.5H61ClFeNP3Si: triclinic, space group P-1, a = 10.8604(17) Å, b = 20.831(3) Å, c = 23.586(4) Å, = 72.318(3)°, = 83.313(3)°, = 89.880(3)°, V = 5046.3(14) Å3, Z = 4, µ(Mo-K) = 0.509 mm–1. 19505 total reflections, 14316 independent (Rint = 8.01%) with I > 2(I); 2a, C51H52ClCoNP3Si: triclinic, space group P-1, a = 12.8058(15) Å, b = 17.612(2) Å, c = 20.505(3) Å, = 93.701(4)°, = 91.736(4)°, = 103.463(4)°, V = 4483.4(10) Å3, Z = 4, µ(Mo-K) = 0.613 mm–1. 17435 total reflections, 9939 independent (Rint = 13.19%) with I > 2(I); 2b, C63H64CoINP3Si: monoclinic, space group P21/c, a = 13.0701(10) Å, b = 19.1387(15) Å, c = 22.1493(16) Å, = 102.943(3)°, V = 5399.8(7) Å3, Z = 4, µ(Mo-K) = 1.042 mm–1. 44992 total reflections, 10823 independent (Rint = 16.66%) with I > 2(I); 3, C45H50ClFeNP2Si: monoclinic, space group P21/n, a = 9.793(3) Å, b = 9.371(3) Å, c = 44.610(12) Å, = 94.581(4)°, V = 4080.9(19) Å3, Z = 4, µ(Mo-K) = 0.575 mm–1. 34419 total reflections, 8553 independent (Rint = 7.69%) with I > 2(I); 4b, C43H54CoINOP2Si: monoclinic, space group P21/c, a = 11.6071(8) Å, b = 21.6762(15) Å, c = 16.8895(12) Å, = 92.988(2)°, V = 4243.6(5) Å3, Z = 4, µ(Mo-K) = 1.268 mm–1. 77696 total reflections, 14707 independent (Rint = 7.91%) with I > 2(I). CCDC 289249–289252. For crystallographic data in CIF or other electronic format see DOI: 10.1039/b516046d

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3508
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CaltechAUTHORS:WHIcc06

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Created
2006-06-11
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2021-11-08
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