Novel Synthetic Routes to s-Block Metal 2,5-Diphenylphospholides and Crystal Structures of the Bis(tetrahydrofuran) Complexes of the Potassium, Calcium, and Strontium Derivatives

Content Provider	Semantic Scholar
Author	Wimmer, Katja Birg, Christin Kretschmer, Robert Al-Shboul, Tareq M. A. Görls, Helmar Krieck, Sven Westerhausen, Matthias
Copyright Year	2009
Abstract	The reduction of 1,4-diphenyl-1,4-bis(diphenylphosphanyl)buta-1,3-diene (1) (1,4-diphenyl- NUPHOS) with potassium in THF yields bis(THF)potassium 2,5-diphenylphospholide (2) which crystallizes with a chain structure. The metathesis reaction of 2 with the iodides of calcium, strontium, and barium leads to the formation of [bis(THF)calcium bis(2,5-diphenylphospholide)] (3), [bis(THF)strontium bis(2,5-diphenylphospholide)] (4), and [bis(THF)barium bis(2,5-diphenylphospholide)] (5). The reaction of M{P(H)SiiPr3}2 with diphenylbutadiyne in THF also leads to the formation of the 2,5-diphenylphospholides of calcium (3), strontium (4), and barium (5). The molecular structures of 2 to 4 are discussed. The environment of the metal atoms is very similar in all these compounds: The metal atoms show an η5 coordination to the phospholide rings forming a bent sandwich complex. The open coordination site is occupied by two THF molecules Graphical Abstract Novel Synthetic Routes to s-Block Metal 2,5-Diphenylphospholides and Crystal Structures of the Bis(tetrahydrofuran) Complexes of the Potassium, Calcium, and Strontium Derivatives
Starting Page	1360
Ending Page	1368
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1515/znb-2009-11-1216
Alternate Webpage(s)	https://www.degruyter.com/downloadpdf/j/znb.2009.64.issue-11-12/znb-2009-11-1216/znb-2009-11-1216.pdf
Alternate Webpage(s)	http://www.znaturforsch.com/ab/v64b/64b1360.pdf
Alternate Webpage(s)	http://www.znaturforsch.com/s64b/s64b1360.pdf
Alternate Webpage(s)	https://doi.org/10.1515/znb-2009-11-1216
Volume Number	64
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article