Abstract
Abstract 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)2MoS4, 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 I41cd. The anionic octameric eicosanuclear [Mo8S32Cu12]4- cluster exhibits a supra-cubane-like skeleton, fabricated by four nest-shaped clusters [Mo(μ1-S)(μ3-S)3Cu3]+ and four flywheel-shaped clusters [Mo(μ2-S)3(μ4-S)Cu3]+ 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.
| Original language | English |
|---|---|
| Article number | 11430 |
| Pages (from-to) | 1-5 |
| Number of pages | 5 |
| Journal | Polyhedron |
| Volume | 101 |
| DOIs | |
| State | Published - 5 Aug 2015 |
| Externally published | Yes |
Keywords
- Crystal structure
- Heterothiometallic Mo/S/Cu cluster
- Host-guest cation-directed synthesis
- Nonlinear optical property
- Supra-cubane-like skeleton
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