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- Title
Stepwise and Self-Assembly Synthesis of Tetranuclear Iron-Thiolate-Diisocyanide Metallocyclophane Complexes.
- Authors
Huang, Yen ‐ Chung; Chen, Hsuan ‐ Ying; Cheng, Chau ‐ Yu; Tsai, Yu ‐ Lin; Chiang, Michael Y.; Hsu, Sodio C. N.
- Abstract
Treatment of known complex [Cp2Fe2 (μ-SEt)2(CH3CN)2](BF4) 2 (1(BF4) 2) with 2 equiv of 1,4-bis(isocyanomethyl)benzene (1,4-CNCH2C6H4CH2NC; L1) or 4,4'-diisocyanophenyl ether (4,4'-CNC6H4OC6H4NC; L2) result in the formation of two new-type diisocyanide complexes [Cp2Fe2 (μ-SEt)2(1,4-CNCH2C6H4CH2NC)2](BF4) 2 (2a(BF4) 2) or [Cp2Fe2 (μ-SEt)2(4,4'-CNC6H4OC6H4NC)2](BF4) 2(2b(BF4) 2), respectively. The new-type 24-membered ring tetranuclear iron-thiolate-aryldiisocyanide metallocyclophane complex [Cp4Fe4 (μ-SEt)4(μ-1,4-CNCH2C6H4CH2NC)2](BF4) 4 (3a(BF4) 4) has been synthesized by using a self-assembly reaction between equimolar amounts of 1(BF4) 2 and 1,4-bis(isocyanomethyl)benzene or by a stepwise route involving mixing a 1:1 molar ratio of complexes 1(BF4) 2 and 2a(BF4) 2. A similar approach was used through the application of equal molar ratio of complexes 1(BF4) 2 and 2b(BF4) 2 to give a 30-membered ring tetranuclear iron-thiolate-aryldiisocyanide metallocyclophane complex [Cp4Fe4 (μ-SEt)4(4,4'-CNC6H4OC6H4NC)2][BF4 ]4 (3b(BF4)4). The spectroscopic and electrochemical properties of four iron-sulfur core complexes were determined.
- Subjects
CYCLOPHANES synthesis; STEPWISE reactions (Chemistry); MOLECULAR self-assembly; ISOCYANIDES; ELECTROCHEMISTRY
- Publication
Journal of the Chinese Chemical Society, 2017, Vol 64, Issue 1, p94
- ISSN
0009-4536
- Publication type
Article
- DOI
10.1002/jccs.201600776