A supra-cubane-like Mo/S/Cu cluster: Cation-directed synthesis, crystal structure and nonlinear optical property

作者：Zhang, Jinfang^*; Chen, Weitao; Fang, Yu; Jia, Ding; Wang, Yinlin; Song, Yinglin; Zhang, Chi

来源：Polyhedron, 2015, 101: 1-5.

DOI：10.1016/j.poly.2015.07.044

• Heterothiometallic Mo/S/Cu cluster
• Host-guest cation-directed synthesis
• Crystal structure
• Supra-cubane-like skeleton
• Nonlinear optical property

Directed by potassium-crownether host-guest cation, a unique octameric eicosanuclear heterothiometallic Mo/S/Cu cluster [K(dibenzo-18-crown-6)(DMF)(2)](4)[Mo8S32Cu12] (1) was synthesized by the reaction of (NH4)(2)MoS4, CuI, KI, dibenzo-18-crown-6 in DMF solution. 1 was characterized by elemental analysis, IR, thermogravimetric analysis, X-ray powder and single crystal diffractions. 1 crystallizes in the tetragonal space group I4(1)cd. The anionic octameric eicosanuclear [Mo8S32Cu12](4-) cluster exhibits a supra-cubane-like skeleton, fabricated by four nest-shaped clusters [Mo(mu(1)-S)(mu(3)-S)(3)Cu-3](+) and four flywheel-shaped clusters [Mo(mu(2)-S)(3)(mu(4)-S)Cu-3](+) linking together through shared Cu atoms. The cation [K(dibenzo-18-crown-6)(DMF)(2)](+) of 1 exhibits the host-guest configuration, where K+ is embedded in the center of dibenzo-18-crown-6. Furthermore, Z-scan studies (532 nm, 21 Ps pulses) reveal that 1 possesses effective third-order nonlinear optical (NLO) properties.

• 出版日期2015-11-24
• 单位苏州大学; 江南大学; 江苏大学