Abstract
Two W/Mo complexes, [Et3NH]2[WO2(C10H6O2)2] (1) and [Et3NH]2[MoO2(C10H6O2)2] (2), were synthesized by the reaction of Na2WO4 · 2H2O and (NH4)2Mo2O7 · 4H2O with 2,3-DHN (DHN = dihydroxynaphthalene) and triethylamine, and characterized by X-ray diffraction and IR. The two complexes exhibit chiral octahedral geometry at central metals, although the overall structure is racemic. Single crystals of 1 are more difficult to obtain than for 2. The molybdenum complex can be easily isolated at room temperature (around 25°C), while the tungsten one needs to be isolated under 15°C, otherwise, the quality of crystal will be poor, leading to disorder. The structures of these two complexes are chiral and enantiomorphous to each other.
Acknowledgments
This work was supported by the National Science Council of People's Republic of China (grant no. 20871085) and the National Science Foundation of Beijing (grant no. 2092009).