Luminescent chains formed from neutral, triangular gold complexes sandwiching TlI and AgI.: Structures of {Ag([Au(μ-C2,N3-bzim)]3)2}BF4•CH2Cl2, {Tl([Au(μ-C2,N3-bzim)]3)2}PF6•0.5THF (bzim = 1-benzylimidazolate), and {Tl([Au(μ-C(OEt)=NC6H4CH3)]3)2}PF6•THF, with MAu6 (M = Ag+, Tl+) cluster cores
Luminescent chains formed from neutral, triangular gold complexes sandwiching TlI and AgI.: Structures of {Ag([Au(μ-C2,N3-bzim)]3)2}BF4•CH2Cl2, {Tl([Au(μ-C2,N3-bzim)]3)2}PF6•0.5THF (bzim = 1-benzylimidazolate), and {Tl([Au(μ-C(OEt)=NC6H4CH3)]3)2}PF6•THF, with MAu6 (M = Ag+, Tl+) cluster cores
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DOI：
10.1021/ic991492n
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发表时间：
2000-07-24
影响因子：
4.6
通讯作者：
Staples, RJ
中科院分区：
文献类型：
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作者：
Burini, A;Bravi, R;Staples, RJ
研究发现，Au-Ⅰ的几种三核配合物与银盐和铊盐相互作用，嵌入Ag+和Tl+阳离子，从而形成链状结构。由此产生的三明治集群中心的平面三核部分之间的阳离子产生的结构，其中六个Au-I原子与每个阳离子在一个扭曲的三角棱柱协调相互作用。得到的金属原子的（B（3）AB（3）B（3）AB（3））（无穷大）模式也显示了BA B分子中心之间的短（类似于3.0 A）亲金相互作用。这些化合物在UV激发下显示出强烈的可见光，其对温度和与金相互作用的金属离子敏感。报道了Ag（[Au（mu-C-2，N-3-bzim）]（3））（2）BF 4的X射线晶体结构。CH 2Cl 2（P（1）在棒上，Z = 2，a = 14.4505（1）埃; B = 15.098（2）埃; c = 15.957（1）埃; α = 106.189（3）度; β = 103.551（5）度; γ = 101.310（5）度）; Tl（[Au（mu-C-2，N-3-bzim）]（3））（2）PF 6. 0.5C（4）H（8）O（P（1）在棒上，Z = 2，a = 15.2093（1）埃; B =15.3931（4）埃; c = 16.1599（4）埃; α = 106.018（1）度; β = 101.585（2）度; γ =102.068（2）度）;和Tl（[Au（μ-C（OEt）= NC 6H 4CH 3）]（3））（2）PF 6。C4 H8 O（P2（1）/n，Z = 4，a = 16.4136（3）埃; B = 27.6277（4）埃; c = 16.7182（1）埃; β = 105.644（1）度）。每个化合物显示，插入的阳离子，Ag+或Tl+，协调到六个Au-I原子的扭曲三棱柱。抗衡阴离子与簇链之间的阳离子相距很远。
It has been found that several trinuclear complexes of Au-I interact with silver and thallium salts to intercalate Ag+ and Tl+ cations, thereby forming chains. The resulting sandwich clusters center the cations between the planar trinuclear moieties producing structures in which six Au-I atoms interact with each cation in a distorted trigonal prismatic coordination. The resultant (B(3)AB(3)B(3)AB(3))(infinity) pattern of metal atoms also shows short (similar to 3.0 A) aurophilic interactions between BAB molecular centers. These compounds display a strong visible luminescence, under UV excitation, which is sensitive to temperature and the metal ion interacting with the gold. X-ray crystal structures are reported for Ag([Au(mu-C-2,N-3-bzim)](3))(2)BF4. CH2Cl2 (P (1) over bar, Z = 2, a = 14.4505(1)Angstrom; b = 15.098(2)Angstrom; c = 15.957(1)Angstrom; alpha = 106.189(3)degrees; beta = 103.551(5)degrees; gamma = 101.310(5)degrees); Tl([Au(mu-C-2,N-3-bzim)](3))(2)PF6. 0.5C(4)H(8)O (P (1) over bar, Z = 2, a = 15.2093(1)Angstrom; b =15.3931(4)Angstrom; c = 16.1599(4)Angstrom; alpha = 106.018(1)degrees; beta = 101.585(2)degrees; gamma=102.068(2)degrees); and Tl([Au(mu-C(OEt)=NC6H4CH3)](3))(2)PF6. C4H8O (P2(1)/n, Z = 4, a = 16.4136(3)Angstrom; b = 27.6277(4)Angstrom; c = 16.7182(1)Angstrom; beta = 105.644(1)degrees). Each compound shows that the intercalated cation, Ag+ or Tl+, coordinates to a distorted trigonal prism of six Au-I atoms. The counteranions reside well apart from the cations between the cluster chains.