Iron indenyl carbonyl compounds: CO-releasing moleculesElectronic supplementary information (ESI) available: X-Ray crystal data for [Fe(η5-C9H7)(CO)2L][BF4], L = P(OPh)3, PPh3, MeC3N2H3, NCMe, CO and NC5H5. CCDC reference numbers 640144, 766622-766626. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c0dt00203h

• Main Authors: Hewison, Lindsay, Crook, Sian H, Johnson, Tony R, Mann, Brian E, Adams, Harry, Plant, Sarah E, Sawle, Philip, Motterlini, Roberto
• Format: Article
• Language: English
• ISSN: 1477-9226; 1477-9234
• DOI: 10.1039/c0dt00203h

New CO-releasing molecules, CO-RMs, based on indenyl iron carbonyls have been identified. Half-lives for carbon monoxide (CO) release, 1 H NMR, 13 C NMR, IR, mass spectra, elemental analysis and biological data have been determined for the compounds. Limited correlations have been made between half-lives and Δ G ‡ for CO release and spectroscopic parameters, ν (CO) and δ( 13 CO). X-ray structures have been determined for [Fe(η 5 -C 9 H 7 )(CO) 2 L][BF 4 ] where L is CO, NCMe, PPh 3 , P(OPh) 3 , NC 5 H 5 or 1-methylimidazole. Improved preparations of [Fe(η 5 -C 9 H 7 )(CO) 2 ] 2 and [Fe(η 5 -C 9 H 7 )(CO) 3 ][BF 4 ] are reported. New CO-releasing molecules based on indenyl iron carbonyls have been identified and X-ray structures have been determined for some compounds