Synthesis, Crystal Structure, and Bioactivity of a Novel Iron(III) 18-Metallacrown-6 Complex
A macrocyclic hexanuclear iron(Ⅲ) 18-metallacrown-6 compound,”Fe6 (H2 O)6 (abshz)6 ”·38H2 O,has been prepared using a trianionic pentadentate ligand N-acetyl-5-bromosalicylhydrazidate (abshz3-) and characterized by X-ray diffraction.The crystal structure contains a neutral 18-member metallacrown ring con-sisting of six Fe(Ⅲ) and six abshz3- ligands.The 18-member met-allacrown ring is formed by the succession of six structural moieties of the type ”Fe(Ⅲ)-N-N”.Due to the meridional coordination of the ligand to the Fe3+ ion,the ligand enforces the stereochemistry of the Fe3+ ions as a propeller configuration with alternating forms.The disc-shaped hexanuclear ring shows at its largest di-ameter about 7.27 (A) at entrance and about 9.80 (A) at the center of the cavity.Antibacterial screening data showed that the iron met-allacrown has strong antimicrobial activity against Bacillus subtilis and Staphylococcus aureus..
bioactivity crystal structure iron complex metallacrown
Xinwen Zhang Lamei Wu Jian Zhang Longfei Jin
Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Wuhan, P.R. China
国内会议
武汉
英文
174-181
2012-06-08（万方平台首次上网日期，不代表论文的发表时间）