Preparations and structural diversity of copper(I) ethylene adducts with related 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine ligands
作者： Masahiko Maekawa , Takeshi Miyazaki , Kunihisa Sugimoto , Takashi Okubo , Takayoshi Kuroda-Sowa
DOI: 10.1016/J.ICA.2013.10.015
关键词: Moiety 、 Chemistry 、 Adduct 、 Cycloaddition 、 Medicinal chemistry 、 Crystal structure 、 Ferrocene 、 Tetrazine 、 Denticity 、 Stereochemistry 、 Copper
摘要: Abstract The reaction of [Cu(C 2 H 4 ) n ]NO 3 , Cu turnings, 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine (bptz), and ferrocene in Me CO under C afforded black crystals [Cu (4,5-H bptz) ][Cu(C )(NO ] (NO ·2Me ( 7 ). In the 4+ cation moiety, four Cu(I) atoms are bridged by 4,5-H bptz ligands to form a [4 × 4] grid-like tetranuclear structure. − anion atom is coordinated two NO anions unidentate coordination mode bond mononuclear Cu(I)–C adduct trigonal-planar geometry. It should be noted that anionic adducts present as co-crystal. similar Cu(BF ·H O, bptz, MeEtCO colorless (bpdpyz)(C ](BF 9 2+ each chelate N bpdpyz afford an unusual cisoid dinuclear This result shows 3,6-bis(2-pyridyl)-4,5-dihydropyridazine (bpdpyz) can produced cycloaddition with via Diels–Alder addition retro-Diels–Alder elimination dinitrogen complex . contrast, absence ·Me 12 Although apparent structure moiety shape framework closer square structure, resulting adjacency opposite tetrazine rings. preparations structural diversity related described previous results.
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