Click Synthesis of Fluorine-Rich Cyclotriphosphazene Hydrazones. Synthesis and Supramolecular Structures of N3P3(N(Me)N=CHC6F5)6, spiro-N<
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- 作者：Vadapalli Chandrasekhar ; Pakkirisamy Thilagar ; Venkatasubbaiah Krishnan ; James. F. Bickley ; Alexander Steiner
- 刊名：Crystal Growth & Design
- 出版年：2007
- 出版时间：April 2007
- 年：2007
- 卷：7
- 期：4
- 页码：668 - 675
- 全文大小：853K
- 年卷期：v.7,no.4(April 2007)
- ISSN：1528-7505
文摘
The cyclophosphazene hydrazides N3P3(N(Me)NH2)6 (1), spiro-N3P3(C12H8O2)(N(Me)NH2)4 (2), and dispiro-N3P3(C12H8O2)2(N(Me)NH2)2 (3) have been readily elaborated by a click synthesis involving condensation with pentafluorobenzaldehydeto afford the fluorine-rich cyclophosphazene hydrazones N3P3(N(Me)N=CHC6F5)6 (4), spiro-N3P3(C12H8O2)(N(Me)N=CHC6F5)4(5), and dispiro-N3P3(C12H8O2)2(N(Me)N=CHC6F5)2 (6) in excellent yields. The molecular and crystal structures of 4-6 are reported.The crystal structures of 4-6 reveal a rich interplay of various intermolecular secondary interactions generating novel supramoleculararchitectures. The dependence of the molecular symmetry on the eventual supramolecular structures is also revealed. The crystalstructure of 6 shows the selective entrapment of guest dioxane molecules.