The Uranocene Half-Sandwich: ([8]Annulene)Uranium(IV) Dichloride and Some Derivatives

Thomas R. Boussie; Robert M. Moore; Andrew Streitwieser; Alan Zalkin; John Brennan; Kennith A. Smith

doi:10.1021/om00157a007

The Uranocene Half-Sandwich: ([8]Annulene)Uranium(IV) Dichloride and Some Derivatives

Thomas R. Boussie
, Robert M. Moore
, Andrew Streitwieser
, Alan Zalkin
, John Brennan
, Kennith A. Smith

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

38 Scopus citations

Abstract

A facile synthesis of ([8]annulene)uranium(IV) dichloride (1) has been developed via the reduction of cyclooctatetraene (COT) by UCl₃ or through reaction of UCl₄, COT, and NaH. The activation parameters for the coordination of trimethylphosphine (PMe₃) to 1 in THF solution have been measured. The reactivity of 1 with several mono- and bidentate alkylmetal and alkoxymetal reagents is reported. Also reported are the crystal structures of bis(pyridine)([8]annulene)uranium(IV) dichloride, (C₈H₈)UCl₂(NC₅H₅)₂ (3), and ([8]annulene)uranium(IV) bis(acetylacetonate), (C₈H₈)U(CH₃COCHCOCH₃)₂ (4). Crystals of 3 are monoclinic P2₁/c, with a = 15.431 (3) Å, b = 7.744 (2) Å, c = 15.665 (3) Å, Z = 4, and R_F = 2.8%. Crystals are 4 are monoclinic, P2₁/n, with a = 19.166 (4) Å, b-10.312 (2) Å, c = 9.227 (2), Z = 4, and R_F = 2.7%.

Original language	English (US)
Pages (from-to)	2010-2016
Number of pages	7
Journal	Organometallics
Volume	9
Issue number	7
DOIs	https://doi.org/10.1021/om00157a007
State	Published - 1990
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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@article{748996573b204d05b66113cfbc9bd701,

title = "The Uranocene Half-Sandwich: ([8]Annulene)Uranium(IV) Dichloride and Some Derivatives",

abstract = "A facile synthesis of ([8]annulene)uranium(IV) dichloride (1) has been developed via the reduction of cyclooctatetraene (COT) by UCl3 or through reaction of UCl4, COT, and NaH. The activation parameters for the coordination of trimethylphosphine (PMe3) to 1 in THF solution have been measured. The reactivity of 1 with several mono- and bidentate alkylmetal and alkoxymetal reagents is reported. Also reported are the crystal structures of bis(pyridine)([8]annulene)uranium(IV) dichloride, (C8H8)UCl2(NC5H5)2 (3), and ([8]annulene)uranium(IV) bis(acetylacetonate), (C8H8)U(CH3COCHCOCH3)2 (4). Crystals of 3 are monoclinic P21/c, with a = 15.431 (3) {\AA}, b = 7.744 (2) {\AA}, c = 15.665 (3) {\AA}, Z = 4, and RF = 2.8\%. Crystals are 4 are monoclinic, P21/n, with a = 19.166 (4) {\AA}, b-10.312 (2) {\AA}, c = 9.227 (2), Z = 4, and RF = 2.7\%.",

author = "Boussie, \{Thomas R.\} and Moore, \{Robert M.\} and Andrew Streitwieser and Alan Zalkin and John Brennan and Smith, \{Kennith A.\}",

year = "1990",

doi = "10.1021/om00157a007",

language = "English (US)",

volume = "9",

pages = "2010--2016",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

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}

TY - JOUR

T1 - The Uranocene Half-Sandwich

T2 - ([8]Annulene)Uranium(IV) Dichloride and Some Derivatives

AU - Boussie, Thomas R.

AU - Moore, Robert M.

AU - Streitwieser, Andrew

AU - Zalkin, Alan

AU - Brennan, John

AU - Smith, Kennith A.

PY - 1990

Y1 - 1990

N2 - A facile synthesis of ([8]annulene)uranium(IV) dichloride (1) has been developed via the reduction of cyclooctatetraene (COT) by UCl3 or through reaction of UCl4, COT, and NaH. The activation parameters for the coordination of trimethylphosphine (PMe3) to 1 in THF solution have been measured. The reactivity of 1 with several mono- and bidentate alkylmetal and alkoxymetal reagents is reported. Also reported are the crystal structures of bis(pyridine)([8]annulene)uranium(IV) dichloride, (C8H8)UCl2(NC5H5)2 (3), and ([8]annulene)uranium(IV) bis(acetylacetonate), (C8H8)U(CH3COCHCOCH3)2 (4). Crystals of 3 are monoclinic P21/c, with a = 15.431 (3) Å, b = 7.744 (2) Å, c = 15.665 (3) Å, Z = 4, and RF = 2.8%. Crystals are 4 are monoclinic, P21/n, with a = 19.166 (4) Å, b-10.312 (2) Å, c = 9.227 (2), Z = 4, and RF = 2.7%.

AB - A facile synthesis of ([8]annulene)uranium(IV) dichloride (1) has been developed via the reduction of cyclooctatetraene (COT) by UCl3 or through reaction of UCl4, COT, and NaH. The activation parameters for the coordination of trimethylphosphine (PMe3) to 1 in THF solution have been measured. The reactivity of 1 with several mono- and bidentate alkylmetal and alkoxymetal reagents is reported. Also reported are the crystal structures of bis(pyridine)([8]annulene)uranium(IV) dichloride, (C8H8)UCl2(NC5H5)2 (3), and ([8]annulene)uranium(IV) bis(acetylacetonate), (C8H8)U(CH3COCHCOCH3)2 (4). Crystals of 3 are monoclinic P21/c, with a = 15.431 (3) Å, b = 7.744 (2) Å, c = 15.665 (3) Å, Z = 4, and RF = 2.8%. Crystals are 4 are monoclinic, P21/n, with a = 19.166 (4) Å, b-10.312 (2) Å, c = 9.227 (2), Z = 4, and RF = 2.7%.

UR - https://www.scopus.com/pages/publications/0001651477

UR - https://www.scopus.com/pages/publications/0001651477#tab=citedBy

U2 - 10.1021/om00157a007

DO - 10.1021/om00157a007

M3 - Article

AN - SCOPUS:0001651477

SN - 0276-7333

VL - 9

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EP - 2016

JO - Organometallics

JF - Organometallics

IS - 7

ER -

The Uranocene Half-Sandwich: ([8]Annulene)Uranium(IV) Dichloride and Some Derivatives

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