η5-cyclopentadienyl and η5-methylcyclopentadienyl 1,2-bis(dimethylphosphino)ethane complexes of titanium(II). The crystal structure of Ti(C5H4Me)2(dmpe)

Gregory S. Girolami; Geoffrey Wilkinson; Mark Thornton-Pett; Michael B. Hursthouse

doi:10.1039/DT9840002347

η⁵-cyclopentadienyl and η⁵-methylcyclopentadienyl 1,2-bis(dimethylphosphino)ethane complexes of titanium(II). The crystal structure of Ti(C₅H₄Me)₂(dmpe)

Gregory S. Girolami, Geoffrey Wilkinson, Mark Thornton-Pett, Michael B. Hursthouse

Research output: Contribution to journal › Article › peer-review

Abstract

The interaction of the titanium(II) complex trans-TiCl₂(dmpe)₂ with 2 equivalents of Na(C₅H₅) or Na(C₅H₄Me) in diethyl ether gives the dark orange cyclopentadienyl compounds Ti(C₅H₄R)₂(dmpe) (R = H or Me, dmpe = Me₂PCH₂CH₂PMe₂). These diamagnetic 18-electron species give n.m.r. spectra consistent with a bent metallocene structure, confirmed by the X-ray structure analysis of Ti(C₅H₄Me)₂(dmpe) for which Ti-P 2.533(6) Å (mean), Ti-C 2.310(5)-2.441 (6) Å, P-Ti-P 76.9(2)°, and centroid-Ti-centroid = 135.3(2)°. The cyclopentadienyl rings are very slightly tilted towards the dmpe ligand due to non-bonding contacts between the ring-bound methyl groups.

Original language	English (US)
Pages (from-to)	2347-2350
Number of pages	4
Journal	Journal of the Chemical Society, Dalton Transactions
Issue number	10
DOIs	https://doi.org/10.1039/DT9840002347
State	Published - 1984
Externally published	Yes

ASJC Scopus subject areas

General Chemistry

Online availability

10.1039/DT9840002347

Library availability

Discover UIUC Full Text

Cite this

η⁵-cyclopentadienyl and η⁵-methylcyclopentadienyl 1,2-bis(dimethylphosphino)ethane complexes of titanium(II). The crystal structure of Ti(C₅H₄Me)₂(dmpe). / Girolami, Gregory S.; Wilkinson, Geoffrey; Thornton-Pett, Mark et al.
In: Journal of the Chemical Society, Dalton Transactions, No. 10, 1984, p. 2347-2350.

Research output: Contribution to journal › Article › peer-review

@article{6500b795892e4c289802c57b45f525ea,

title = "η5-cyclopentadienyl and η5-methylcyclopentadienyl 1,2-bis(dimethylphosphino)ethane complexes of titanium(II). The crystal structure of Ti(C5H4Me)2(dmpe)",

abstract = "The interaction of the titanium(II) complex trans-TiCl2(dmpe)2 with 2 equivalents of Na(C5H5) or Na(C5H4Me) in diethyl ether gives the dark orange cyclopentadienyl compounds Ti(C5H4R)2(dmpe) (R = H or Me, dmpe = Me2PCH2CH2PMe2). These diamagnetic 18-electron species give n.m.r. spectra consistent with a bent metallocene structure, confirmed by the X-ray structure analysis of Ti(C5H4Me)2(dmpe) for which Ti-P 2.533(6) {\AA} (mean), Ti-C 2.310(5)-2.441 (6) {\AA}, P-Ti-P 76.9(2)°, and centroid-Ti-centroid = 135.3(2)°. The cyclopentadienyl rings are very slightly tilted towards the dmpe ligand due to non-bonding contacts between the ring-bound methyl groups.",

author = "Girolami, {Gregory S.} and Geoffrey Wilkinson and Mark Thornton-Pett and Hursthouse, {Michael B.}",

year = "1984",

doi = "10.1039/DT9840002347",

language = "English (US)",

pages = "2347--2350",

journal = "Journal of the Chemical Society, Dalton Transactions",

issn = "1472-7773",

publisher = "Royal Society of Chemistry",

number = "10",

}

TY - JOUR

T1 - η5-cyclopentadienyl and η5-methylcyclopentadienyl 1,2-bis(dimethylphosphino)ethane complexes of titanium(II). The crystal structure of Ti(C5H4Me)2(dmpe)

AU - Girolami, Gregory S.

AU - Wilkinson, Geoffrey

AU - Thornton-Pett, Mark

AU - Hursthouse, Michael B.

PY - 1984

Y1 - 1984

N2 - The interaction of the titanium(II) complex trans-TiCl2(dmpe)2 with 2 equivalents of Na(C5H5) or Na(C5H4Me) in diethyl ether gives the dark orange cyclopentadienyl compounds Ti(C5H4R)2(dmpe) (R = H or Me, dmpe = Me2PCH2CH2PMe2). These diamagnetic 18-electron species give n.m.r. spectra consistent with a bent metallocene structure, confirmed by the X-ray structure analysis of Ti(C5H4Me)2(dmpe) for which Ti-P 2.533(6) Å (mean), Ti-C 2.310(5)-2.441 (6) Å, P-Ti-P 76.9(2)°, and centroid-Ti-centroid = 135.3(2)°. The cyclopentadienyl rings are very slightly tilted towards the dmpe ligand due to non-bonding contacts between the ring-bound methyl groups.

AB - The interaction of the titanium(II) complex trans-TiCl2(dmpe)2 with 2 equivalents of Na(C5H5) or Na(C5H4Me) in diethyl ether gives the dark orange cyclopentadienyl compounds Ti(C5H4R)2(dmpe) (R = H or Me, dmpe = Me2PCH2CH2PMe2). These diamagnetic 18-electron species give n.m.r. spectra consistent with a bent metallocene structure, confirmed by the X-ray structure analysis of Ti(C5H4Me)2(dmpe) for which Ti-P 2.533(6) Å (mean), Ti-C 2.310(5)-2.441 (6) Å, P-Ti-P 76.9(2)°, and centroid-Ti-centroid = 135.3(2)°. The cyclopentadienyl rings are very slightly tilted towards the dmpe ligand due to non-bonding contacts between the ring-bound methyl groups.

UR - http://www.scopus.com/inward/record.url?scp=37049111122&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=37049111122&partnerID=8YFLogxK

U2 - 10.1039/DT9840002347

DO - 10.1039/DT9840002347

M3 - Article

AN - SCOPUS:37049111122

SN - 1472-7773

SP - 2347

EP - 2350

JO - Journal of the Chemical Society, Dalton Transactions

JF - Journal of the Chemical Society, Dalton Transactions

IS - 10

ER -