Sterically encumbered charge-compensated carbaboranes: Synthesis and reactivity molecular structures of 7-Ph-11-SMe2-7,8-nido-C2B9H10 and 1-Ph-3,3-(CO) 2-7-SMe2-3,1,2-closo-RhC2B9H8

Georgina M. Rosair; Alan J. Welch; Andrew S. Weller; Stephan K. Zahn

Sterically encumbered charge-compensated carbaboranes: Synthesis and reactivity molecular structures of 7-Ph-11-SMe₂-7,8-nido-C₂B₉H₁₀ and 1-Ph-3,3-(CO) ₂-7-SMe₂-3,1,2-closo-RhC₂B₉H₈

Georgina M. Rosair, Alan J. Welch, Andrew S. Weller, Stephan K. Zahn

School of Engineering & Physical Sciences

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

31 Citations (Scopus)

Abstract

Reaction between K[7-Ph-7,8-nido-C₂B₉H₁₁] and dmso in H₂SO₄ affords a mixture of the isomers 7-Ph-9-SMe₂-7,8-nido-C₂B₉H₁₀ (1a) and 7-Ph-11-SMe₂-7,8-nido-C₂B₉H₁₀ (1b). Similarly, starting from K[7,8-Ph₂-7,8-nido-C₂B₉H₁₀], the diphenyl analogue 7,8-Ph₂-9-SMe₂-7,8-nido-C₂B₉H₉ (2) was produced. These three new nido carbaboranes have been characterised spectroscopically, including ¹¹B-¹¹B COSY and ¹H-¹H NOESY experiments, and by a single crystal diffraction study on 1b. Deprotonation of 1a followed by addition of [RhCl(CO)₂]₂ affords the carbametallaborane 1-Ph-33-(CO)₂-7-SMe₂-3,1,2-closo-RhC₂B₉H₉ (3), characterised by IR and ¹H and ₁₁B NMR spectroscopies and by a crystallographic study. © 1997 Elsevier Science S.A.

Original language	English
Pages (from-to)	299-308
Number of pages	10
Journal	Journal of Organometallic Chemistry
Volume	536-537
Publication status	Published - 30 May 1997

Keywords

Boron
Carbaboranes
Crystal structure
Rhodium
Steric effects

Cite this

@article{0daba96844fb42baa1eedd2f1f050baf,

title = "Sterically encumbered charge-compensated carbaboranes: Synthesis and reactivity molecular structures of 7-Ph-11-SMe2-7,8-nido-C2B9H10 and 1-Ph-3,3-(CO) 2-7-SMe2-3,1,2-closo-RhC2B9H8",

abstract = "Reaction between K[7-Ph-7,8-nido-C2B9H11] and dmso in H2SO4 affords a mixture of the isomers 7-Ph-9-SMe2-7,8-nido-C2B9H10 (1a) and 7-Ph-11-SMe2-7,8-nido-C2B9H10 (1b). Similarly, starting from K[7,8-Ph2-7,8-nido-C2B9H10], the diphenyl analogue 7,8-Ph2-9-SMe2-7,8-nido-C2B9H9 (2) was produced. These three new nido carbaboranes have been characterised spectroscopically, including 11B-11B COSY and 1H-1H NOESY experiments, and by a single crystal diffraction study on 1b. Deprotonation of 1a followed by addition of [RhCl(CO)2]2 affords the carbametallaborane 1-Ph-33-(CO)2-7-SMe2-3,1,2-closo-RhC2B9H9 (3), characterised by IR and 1H and 11B NMR spectroscopies and by a crystallographic study. {\textcopyright} 1997 Elsevier Science S.A.",

keywords = "Boron, Carbaboranes, Crystal structure, Rhodium, Steric effects",

author = "Rosair, {Georgina M.} and Welch, {Alan J.} and Weller, {Andrew S.} and Zahn, {Stephan K.}",

year = "1997",

month = may,

day = "30",

language = "English",

volume = "536-537",

pages = "299--308",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

publisher = "Elsevier B.V.",

}

Sterically encumbered charge-compensated carbaboranes: Synthesis and reactivity molecular structures of 7-Ph-11-SMe₂-7,8-nido-C₂B₉H₁₀ and 1-Ph-3,3-(CO) ₂-7-SMe₂-3,1,2-closo-RhC₂B₉H₈. / Rosair, Georgina M.; Welch, Alan J.; Weller, Andrew S. et al.
In: Journal of Organometallic Chemistry, Vol. 536-537, 30.05.1997, p. 299-308.

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

TY - JOUR

T1 - Sterically encumbered charge-compensated carbaboranes

T2 - Synthesis and reactivity molecular structures of 7-Ph-11-SMe2-7,8-nido-C2B9H10 and 1-Ph-3,3-(CO) 2-7-SMe2-3,1,2-closo-RhC2B9H8

AU - Rosair, Georgina M.

AU - Welch, Alan J.

AU - Weller, Andrew S.

AU - Zahn, Stephan K.

PY - 1997/5/30

Y1 - 1997/5/30

N2 - Reaction between K[7-Ph-7,8-nido-C2B9H11] and dmso in H2SO4 affords a mixture of the isomers 7-Ph-9-SMe2-7,8-nido-C2B9H10 (1a) and 7-Ph-11-SMe2-7,8-nido-C2B9H10 (1b). Similarly, starting from K[7,8-Ph2-7,8-nido-C2B9H10], the diphenyl analogue 7,8-Ph2-9-SMe2-7,8-nido-C2B9H9 (2) was produced. These three new nido carbaboranes have been characterised spectroscopically, including 11B-11B COSY and 1H-1H NOESY experiments, and by a single crystal diffraction study on 1b. Deprotonation of 1a followed by addition of [RhCl(CO)2]2 affords the carbametallaborane 1-Ph-33-(CO)2-7-SMe2-3,1,2-closo-RhC2B9H9 (3), characterised by IR and 1H and 11B NMR spectroscopies and by a crystallographic study. © 1997 Elsevier Science S.A.

AB - Reaction between K[7-Ph-7,8-nido-C2B9H11] and dmso in H2SO4 affords a mixture of the isomers 7-Ph-9-SMe2-7,8-nido-C2B9H10 (1a) and 7-Ph-11-SMe2-7,8-nido-C2B9H10 (1b). Similarly, starting from K[7,8-Ph2-7,8-nido-C2B9H10], the diphenyl analogue 7,8-Ph2-9-SMe2-7,8-nido-C2B9H9 (2) was produced. These three new nido carbaboranes have been characterised spectroscopically, including 11B-11B COSY and 1H-1H NOESY experiments, and by a single crystal diffraction study on 1b. Deprotonation of 1a followed by addition of [RhCl(CO)2]2 affords the carbametallaborane 1-Ph-33-(CO)2-7-SMe2-3,1,2-closo-RhC2B9H9 (3), characterised by IR and 1H and 11B NMR spectroscopies and by a crystallographic study. © 1997 Elsevier Science S.A.

KW - Boron

KW - Carbaboranes

KW - Crystal structure

KW - Rhodium

KW - Steric effects

M3 - Article

SN - 0022-328X

VL - 536-537

SP - 299

EP - 308

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

ER -

Sterically encumbered charge-compensated carbaboranes: Synthesis and reactivity molecular structures of 7-Ph-11-SMe2-7,8-nido-C2B9H10 and 1-Ph-3,3-(CO) 2-7-SMe2-3,1,2-closo-RhC2B9H8

Abstract

Keywords

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Cite this

Sterically encumbered charge-compensated carbaboranes: Synthesis and reactivity molecular structures of 7-Ph-11-SMe₂-7,8-nido-C₂B₉H₁₀ and 1-Ph-3,3-(CO) ₂-7-SMe₂-3,1,2-closo-RhC₂B₉H₈