Photochemical generation of a novel (O, N′, N′′) coordinated iron(II) complex [Fe(FT–py) 2] from a ferrocenoyl-functionalized thiourea ligand: N-ferrocenylcarbonyl- N′-(2-pyridyl)thiourea (HFT–py): crystal and molecular structures of HFT–py and [Fe(FT–py) 2]

• Published in: Journal of organometallic chemistry 1999-07, Vol.584 (1), p.190-196
• Main Authors: Che, De-Ji, Li, Gang, Yao, Xiao-Lan, Wu, Qiang-Jin, Wang, Wen-Ling, Zhu, Yu
• Format: Article
• Language: English
• Subjects: Acylthiourea; Charge transfer; Ferrocenoyl; Photolysis; Proton transfer
• ISSN: 0022-328X; 1872-8561
• DOI: 10.1016/S0022-328X(99)00138-2

Photolysis of deoxygenated acetonitrile solution of a ferrocenoyl-functionalized thiourea ligand, N-ferrocenylcarbonyl- N′-(2-pyridyl)thiourea (HFT–py) with visible light leads to the formation of a novel (O, N′, N′′) coordinated iron(II) complex [Fe(FT–py) 2], in which two deprotonated ligands (FT–py −) are bound to one iron(II) centre through a carbonyl oxygen O, deprotonated thioamidic (–C(S)–N′H–) nitrogen N′ and pyridyl nitrogen N′′ atoms to form a distorted octahedral complex. In the photolysis process, the photochemical activation plays an important role in the deprotonation of the intramolecular hydrogen bond (O⋯H–N′) to provide both O, N′ donor sites. The molecular structures of the ligand and its photoproduct were determined by X-ray diffraction, which unequivocally confirmed the photochemical behaviour and the coordination feature.