Synthesis and Characterization of Free and Coordinated 1,2,3-Tripnictolide Anions
Synthesis and Characterization of Free and Coordinated 1,2,3-Tripnictolide Anions
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游离和配位 1,2,3-雷公藤内酯酯阴离子的合成和表征
DOI：
10.1021/om4001296
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发表时间：
2013
期刊：
影响因子：
2.8
通讯作者：
J. Goicoechea
中科院分区：
文献类型：
--
作者：
Robert S. P. Turbervill;A. Jupp;Phillip S. B. McCullough;Doruk Ergöçmen;J. Goicoechea
本文研究了15族元素（[E_7]~（3-）/[E_7]~（2-），E = P，As）的七原子阴离子团簇对对称和不对称取代的炔二苯乙炔和苯乙炔的化学反应性。本文报道的结果，以及先前关于这种簇对乙炔的反应性的报道，描述了一种通用的途径，通过该途径获得否则难以实现的通式[E3 C2 RR ′]-的1，2，3-雷公藤内酯阴离子。（R = R′ = H，E = P（1），As（2）; R = R′ = C6H5，E = P（3）As（4）; R = H，R′ = C6H5，E = P（5），As（6））。这些物质可以分离为[K（18-冠-6）]+或[K（2，2，2-穴）]+盐。所有的阴离子，其特征在于多元素NMR光谱和电喷雾质谱。此外，还获得了新化合物[K（18-冠-6）（THF）2][3]、[K（2，2，2-crypt）][4]·xTHF（x = 0，0.5）和[K（18-冠-6）THF][6]的单晶X射线衍射结构。这些组15的化学反应类似物已被探索…
We have investigated the chemical reactivity of heptaatomic anionic clusters of the group 15 elements ([E7]3–/[HE7]2–, E = P, As) toward the symmetric and asymmetrically substituted alkynes diphenylacetylene and phenylacetylene. The results reported herein, alongside a previous report on the reactivity of such clusters toward acetylene, describe a versatile route by which to access otherwise elusive 1,2,3-tripnictolide anions of the general formula [E3C2RR′]− (R = R′ = H, E = P (1), As (2); R = R′ = C6H5, E = P (3) As (4); R = H, R′ = C6H5, E = P (5), As (6)). These species can be isolated as [K(18-crown-6)]+ or [K(2,2,2-crypt)]+ salts. All anions were characterized by multielement NMR spectroscopy and electrospray mass spectrometry. In addition, single-crystal X-ray diffraction structures of the novel species [K(18-crown-6)(THF)2][3], [K(2,2,2-crypt)][4]·xTHF (x = 0, 0.5), and [K(18-crown-6)THF][6] were also obtained. The chemical reactivity of these group 15 cyclopentadienyl analogues has been explored ...
15族元素配体配合物的配位化学——一个发展领域
影响因子：
4
作者：
Manfred Scheer
通讯作者：
Manfred Scheer
影响因子：
8.4
作者：
Krauss, Hannes;Balazs, Gabor;Scheer, Manfred
通讯作者：
Scheer, Manfred