Bayón Rocio, Coco Silverio, Espinet Pablo
Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain.
Chemistry. 2005 Feb 4;11(4):1079-85. doi: 10.1002/chem.200400829.
Rodlike gold(I) complexes, [Au(C6F4OCmH2m+1)(C(triple bond)NC6H4C6H4OCnH2n+1)] (m=2, n=4, 10; m=6, n=10; m=10, n=6, 10), display interesting features. They are liquid crystals and show photoluminescence in the mesophase, as well as in the solid state and in solution. The single-crystal, X-ray diffraction structure of [Au(C6F4OC2H5)(C(triple bond)NC6H4C6H4OC4H9)] confirms its rodlike structure, with a linear coordination around the gold atom, and reveals the absence of any Au...Au interactions (such interactions are often present in luminescent gold complexes). Well-defined, intermolecular Fortho...Fmeta interactions, with remarkably short intermolecular FF distances (2.66 A), are observed; these interactions seem to be responsible for the crystal packing, which consists of an antiparallel arrangement of molecules. Experiments under different conditions support the explanation that the photoluminescence has an intramolecular origin.
棒状金（I）配合物[Au(C6F4OCmH2m+1)(C≡NC6H4C6H4OCnH2n+1)]（m = 2，n = 4，10；m = 6，n = 10；m = 10，n = 6，10）具有有趣的特性。它们是液晶，在中间相、固态和溶液中均表现出光致发光。[Au(C6F4OC2H5)(C≡NC6H4C6H4OC4H9)]的单晶X射线衍射结构证实了其棒状结构，金原子周围具有线性配位，并表明不存在任何金……金相互作用（这种相互作用在发光金配合物中经常存在）。观察到明确的分子间邻位……间位相互作用，分子间氟……氟距离非常短（2.66 Å）；这些相互作用似乎是晶体堆积的原因，晶体堆积由分子的反平行排列组成。不同条件下的实验支持了光致发光具有分子内起源的解释。
