Structural and spectroscopic studies of three-coordinate copper(I) supported by bis(phosphino)borate ligands
Polyhedron, ISSN: 0277-5387, Vol: 23, Issue: 17, Page: 2901-2913
2004
- 37Citations
- 10Captures
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
The bis(phosphino)borates [( p - t BuPh) 2 B(CH 2 PPh 2 ) 2 ][ASN] ( 1 [ASN]; ASN = 5-azonia-spiro[4.4]nonane), [Ph 2 B(CH 2 P i Pr 2 ) 2 ]Li(THF) 2 ( 2 [Li]), and [(3,5-Me 2 Ph) 2 B(CH 2 P t Bu 2 ) 2 ] − ( 3 [Li] and 3 [Tl]) react with copper(I) reagents to generate anionic and neutral complexes. Reaction of 1 [ASN] with CuI provides the 1:1 adduct [[( p - t BuPh) 2 B(CH 2 PPh 2 ) 2 ]CuI][ASN] ( 4 ). CuCl reacts with 3 [Li] in THF to afford [[(3,5-Me 2 Ph) 2 B(CH 2 P t Bu 2 ) 2 ]CuCl][Li(THF) 4 ] ( 5 ), along with a minor byproduct, the three-coordinate bis(phosphine) adduct {(3,5-Me 2 Ph)B(CH 2 P t Bu 2 ) 2 }CuCl ( 6 ). An analogous neutral complex, {PhB(CH 2 P t Bu 2 ) 2 }CuCl ( 7 ), can be synthesized directly by reacting CuCl with the neutral phosphino borane PhB(CH 2 P t Bu 2 ) 2. Reaction of the substituted copper(I) halide Me 2 S · CuBr with 3 [Tl] provides the anionic dimer complex [{[(3,5-Me 2 Ph) 2 B(CH 2 P t Bu 2 ) 2 ]Cu} 2 (μ-Br)]Tl ( 8 ). The neutral solvent adducts [Ph 2 B(CH 2 P i Pr 2 ) 2 ]Cu(NCCH 3 ) ( 9 ) and [(3,5-Me 2 Ph) 2 B(CH 2 P t Bu 2 ) 2 ]Cu(NCCH 3 ) ( 10 ) are prepared by the reactions between [Cu(CH 3 CN) 4 ][PF 6 ] and 2 [Li] or 3 [Li], respectively. Neutral 10 is a useful precursor to several other neutral species via substitution of the labile acetonitrile ligand, including [(3,5-Me 2 Ph) 2 B(CH 2 P t Bu 2 ) 2 ]Cu(PMe 2 Ph)( 11 ), [(3,5-Me 2 Ph) 2 B(CH 2 P t Bu 2 ) 2 ]Cu(S PMe 3 ) ( 12 ), [(3,5-Me 2 Ph) 2 B(CH 2 P t Bu 2 ) 2 ] Cu(2,6-lutidine) ( 13 ), and [(3,5-Me 2 Ph) 2 B(CH 2 P t Bu 2 ) 2 ]Cu(CN t Bu) ( 14 ). Attempts to isolate a neutral monocarbonyl adduct, [(3,5-Me 2 Ph) 2 B(CH 2 P t Bu 2 ) 2 ]Cu(CO) ( 15 ), are frustrated by the high lability of the CO ligand. The solid-state crystal structures of complexes 6, 8, 9, 10, and 11 have been determined and are described.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0277538704003390; http://dx.doi.org/10.1016/j.poly.2004.08.008; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=8744285844&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0277538704003390; https://dx.doi.org/10.1016/j.poly.2004.08.008
Elsevier BV
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know