P=O→元素配位继续进行,双环化涉及O、C、O-配位钳型配体[5- t -Bu-1,3-{(P(O)(O- i -Pr) 2 } 2 C 6 H 2 ] −在芳基二苯基二氧杂正膦 9- t -Bu -2,6-(O H )-4,4-Ph 2 -3,5-O 2 -2,6的情况下首次实现-P 2 -4λ 5 -P-[5.3.1.0]-undeca-1(10),7(11),8-三烯,以两个非对映体形式存在。
On the Reactivity of RSnCl and RSiMe
<sub>3</sub>
{R = 4‐
<i>t</i>
Bu‐2,6‐[P(O)(O
<i>i</i>
Pr)
<sub>2</sub>
]
<sub>2</sub>
C
<sub>6</sub>
H
<sub>2</sub>
} towards BF
<sub>3</sub>
·OEt
<sub>2</sub>
: Competing Lewis Acidities
作者:Michael Wagner、Michael Lutter、Christina Dietz、Marc H. Prosenc、Klaus Jurkschat
DOI:10.1002/ejic.201500014
日期:2015.4
The reactions of borontrifluoride with the organostannylene RSnCl R = 4-tBu-2,6-[P(O)(OiPr)2]2C6H2} and the organosilane RSiMe3 provided the corresponding 1:1 and 1:2 complexes, respectively, through the formation of P=OB interactions. In the former reaction, even with excess BF3·OEt2, no SnB complexation involving the lone electron pair at the tin(II) center was observed. The experimental results
The reaction of the arylphosphonic acid esters 4,4'-[(i-PrO)(2)P(O)]C6H4C6H4[P(O)(Oi-Pr)(2)] (L-1), 1,3,5-[(i-PrO)(2)P(O)](3)C6H3 (L-2), and 5-t-Bu-1,3-[(i-PrO)(2)P(O)](2)C6H3 (L-3), respectively, with bismuth halides BiX3 (X = Cl, Br, I) gave seven novel bismuth coordination polymers that have been characterized by single-crystal X-ray diffraction analysis. The solid-state structures of [(BiCl3)(L-1)] (1), [(BiBr3)(L-1)]center dot 0.25CH(3)CN (2 center dot 0.25CH(3)CN), [(BiI3)(2)(L-1)]center dot 0.25CH(3)CN (3 center dot 0.25CH(3)CN), [(BiCl3)(L-2)] (4), [(BiCl3)(2)(L-2)] (5), [(BiBr3)(2) (L-2)]center dot CH3CN (6 center dot CH3CN), and [(BiCl3)(L-3)] (7) are presented. Thermal analysis of [(BiCl3)(2)(L-2)] (5) is indicative of a conversion of the complexes into a bismuth phosphonate by complete i-PrX elimination, whereas for [(BiBr3)(2)(L-2)] (6), elimination of i-PrBr and BiBr3 is assumed. Compounds 1-3 form one-dimensional coordination polymers, whereas two-dimensional networks are observed for compounds 4-7.