Iron(II) Clathrochelate with Terminal Triple C≡C Bond and Its Carboranoclathrochelate Derivative with a Flexible Linker between the Polyhedral Cages: Synthesis and X‐Ray Structure. Issue 39 (22nd October 2019) - Zelinskii, Genrikh E.
Abstract: Monopropargylamine iron(II) tris‐dioximate was easily prepared in a high yield using nucleophilic substitution of its monochloroclathrochelate precursor with propargylamine as a primary aliphatic amine N ‐nucleophile in acetonitrile as a solvent. This complex with terminal C≡C group underwent a 1, 3‐dipolar cycloaddition "click"‐reaction with ortho ‐carborane‐1‐methylazide, thus giving a hybrid iron(II) carboranoclathrochelate with ortho ‐carborane‐(12)‐[1, 2, 3]‐triazolmethylamine fragment in its ribbed substituent, the molecule of which contains two ( i. e . clathrochelate and carborane) terminal cages. These complexes were characterized using elemental analysis, MALDI‐TOF mass, IR, UV‐Vis, 1 H, 1 H{ 11 B}, 11 B, 11 B{ 1 H}, 19 F{ 1 H} and 13 C{ 1 H} NMR spectra, and by single crystal X‐ray diffraction as well. Abstract : Monopropargylamine iron(II) tris‐dioximate was easily prepared in a high yield using nucleophilic substitution of its monochloroclathrochelate precursor with propargylamine as a primary aliphatic amine N ‐nucleophile in acetonitrile as a solvent. This complex with terminal C≡C group underwent a 1, 3‐dipolar cycloaddition "click"‐reaction with ortho ‐carborane‐1‐methylazide, thus giving a hybrid iron(II) carboranoclathrochelate with ortho ‐carborane‐(12)‐[1, 2, 3]‐triazolmethylamine fragment in its ribbed substituent, the molecule of which contains two ( i. e . clathrochelate and carborane) terminal cages.