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A complete set of pnictocarbynes: [M(![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/char_e002.gif)
CAPh2)(CO)2(Tp*)] (M = Mo, W; A = N, P, As, Sb, Bi; Tp* = hydrotris(dimethylpyrazolyl)-borate)†
Benjamin J.
Frogley 
a
and
Anthony F.
Hill
*a
a
and
Anthony F.
Hill
*a
Abstract
The first two complete series of pnictogen functionalised carbyne complexes, [M(CAPh2)(CO)2(Tp*)] (M = Mo, W; A = N, P, As, Sb, Bi; Tp* = hydrotris(3,5-dimethylpyrazol-1-yl)borate), have been prepared. The heavier analogues (A ≠ N) result from successive treatment of [M(CBr)(CO)2(Tp*)] with nBuLi and ClAPPh2 (A = P, Sb, Bi) or BrAsPh2 and include the first examples of arsino, stibino or bismuthino carbyne complexes.
![Graphical abstract: A complete set of pnictocarbynes: [M( [[triple bond, length as m-dash]] CAPh2)(CO)2(Tp*)] (M = Mo, W; A = N, P, As, Sb, Bi; Tp* = hydrotris(dimethylpyrazolyl)-borate)](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=C8CC00143J&imageInfo.ImageIdentifier.Year=2018)
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![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/h2_char_e002.gif)
CAPh2)(CO)2(Tp*)] (M = Mo, W; A = N, P, As, Sb, Bi; Tp* = hydrotris(dimethylpyrazolyl)-borate)
