Isocyano-Triphenylene Complexes of Gold, Copper, Silver, and Platinum. Coordination Features and Mesomorphic Behavior
Isocyano-Triphenylene Complexes of Gold, Copper, Silver, and Platinum. Coordination Features and Mesomorphic Behavior
复制标题
DOI：
10.1021/acs.cgd.6b01206
复制
发表时间：
2016-11
影响因子：
3.8
通讯作者：
R. Chico;Cristina Domínguez;B. Donnio;B. Heinrich;S. Coco;P. Espinet
中科院分区：
文献类型：
--
作者：
R. Chico;Cristina Domínguez;B. Donnio;B. Heinrich;S. Coco;P. Espinet
稳定的有机金属配合物[AuX（CN-TriPh）] [X = Cl，C6 F5，C6 F4 O-C10 H21，C6 F4 O-（R）-2-辛基]，[（μ-4，4 ′-C6F4C6F4）{Au（CN-TriPh）}2]、[CuCl（CN-TriPh）]，反式-[PtI 2（CN-TriPh）2]和[Ag合成了一种含1-异氰基-2，3，6，7，10，11-十六烷氧基苯并菲（CN-TriPh）的含苯并菲异腈配体的[（CN-TriPh）2] BF_4。金属离子的配位特征决定了它们的热行为。游离的异氰化物配体和所有单体金衍生物在宽的温度范围内（从5 ° C至220 °C）显示出各向异性介晶行为，而具有相同化学计量但与金络合物不是同构的铜络合物直接熔融成各向同性液体。双异氰化物铂和银络合物也在低温下直接熔化成各向同性液体。在这种情况下，通过太短的连接基连接的两个反式配位的异氰化物配体不能变成共面的，这阻止了介晶结构的形成。吧...
Stable organometallic complexes [AuX(CN-TriPh)] [X = Cl, C6F5, C6F4O-C10H21, C6F4O-(R)-2-octyl], [(μ-4,4′-C6F4C6F4){Au(CN-TriPh)}2], [CuCl(CN-TriPh)], trans-[PtI2(CN-TriPh)2], and [Ag(CN-TriPh)2]BF4, bearing the previously unreported triphenylene-isocyanide ligand 1-isocyano-2,3,6,7,10,11-hexadodecyloxytriphenylene (CN-TriPh), have been synthesized. The coordination features of the metal ion determine their thermal behavior. The free isocyanide ligand and all of the monomeric gold derivatives display enantiotropic mesomorphic behavior over a wide range of temperature (from 5 to 220 °C), while the copper complex, with the same stoichiometry but not isostructural with the gold complexes, melts directly to an isotropic liquid. The bis-isocyanide platinum and silver complexes also melt directly to an isotropic liquid at low temperatures. In this case, the two trans coordinated isocyanide ligands, connected by a too short linker, cannot become coplanar, which prevents the formation of a mesogenic structure. On...