Trigold(I) Phosphine Derivatives of Clusters Containing Octahedral Rh2Ru4B-Boride Cores: The X-Ray Structure of [Rh2Ru4(CO)15Rh2Ru4B{AuPCy3}3] (Cy = cyclohexyl)

[img]PDF - Authorized users only
Language: English
158Kb
Title:Trigold(I) Phosphine Derivatives of Clusters Containing Octahedral Rh2Ru4B-Boride Cores: The X-Ray Structure of [Rh2Ru4(CO)15Rh2Ru4B{AuPCy3}3] (Cy = cyclohexyl)
Creators:
Hattersley, Andrew D.
Housecroft, Catherine E.
Rheingold, Arnold L.
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 64, 6, pp. 959-970
Uncontrolled Keywords:Rhodium clusters, Gold(I) phosphines, Crystal structure, Ruthenium clusters, Borides

Abstract

The reaction of [Rh(CO)<sub>2</sub>Cl]<sub>2</sub> with [HRu<sub>4</sub>(CO)<sub>12</sub>BH]<sup>-</sup> followed by treatment with an excess (at least three-fold) of [Cy<sub>3</sub>PAuCl] (Cy = cyclohexyl) leads to the formation of [Rh<sub>2</sub>Ru<sub>4</sub>(CO)<sub>16</sub>B{AuPCy<sub>3</sub>}] (previously prepared by another route) and [Rh<sub>2</sub>Ru<sub>4</sub>(CO)<sub>15</sub>B{AuPCy<sub>3</sub>}<sub>3</sub>]. The new trigold derivative has been characterized by spectroscopic and mass spectrometric methods, and by single crystal X-ray diffraction. It possesses an octahedral Rh<sub>2</sub>Ru<sub>4</sub> core containing an interstitial boron atom; two of the gold(I) phosphine units cap two adjacent faces and the third bridges an edge of the octahedral cage. There are no close Au···Au contacts. Reactions of [Rh<sub>2</sub>Ru<sub>4</sub>(CO)<sub>16</sub>B]<sup>-</sup> with [(R<sub>3</sub>PAu)<sub>3</sub>O]<sup>+</sup> (R = Ph, 2-MeC<sub>6</sub>H<sub>4</sub>) resulted in the formation of [Rh<sub>2</sub>Ru<sub>4</sub>(CO)<sub>15</sub>B{AuPR<sub>3</sub>}<sub>3</sub>]; for R = Ph, two isomers in respect of the arrangements of the AuPPh<sub>3</sub> were isolated. Fluxional processes involving the gold(I) phosphine fragments have been observed using solution variable-temperature <sup>31</sup>P NMR spectroscopy. <p>

Title:Trigold(I) Phosphine Derivatives of Clusters Containing Octahedral Rh2Ru4B-Boride Cores: The X-Ray Structure of [Rh2Ru4(CO)15Rh2Ru4B{AuPCy3}3] (Cy = cyclohexyl)
Creators:
Hattersley, Andrew D.
Housecroft, Catherine E.
Rheingold, Arnold L.
Uncontrolled Keywords:Rhodium clusters, Gold(I) phosphines, Crystal structure, Ruthenium clusters, Borides
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:64
Number:6
Page Range:pp. 959-970
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19990959UNSPECIFIED
ID Code:1529
Item Type:Article
Deposited On:06 Feb 2009 17:10
Last Modified:06 Feb 2009 16:10

Citation

Hattersley, Andrew D.; Housecroft, Catherine E.; Rheingold, Arnold L. (1999) Trigold(I) Phosphine Derivatives of Clusters Containing Octahedral Rh2Ru4B-Boride Cores: The X-Ray Structure of [Rh2Ru4(CO)15Rh2Ru4B{AuPCy3}3] (Cy = cyclohexyl). Collection of Czechoslovak Chemical Communications, 64 (6). pp. 959-970. ISSN 0010-0765

Repository Staff Only: item control page