An N2S3-Type Co(III) Complex Adsorbed into Mesopores of FSM as a High-Performance Device

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A distorted square-pyramidal N2S3-type Co(III) complex with a vacant site was previously synthesized as an active site model of Nitrile hydratase (NHase), and the coordination behavior of a water molecule to the vacant site was discussed. In this paper, the coordination of other monodentate ligands (CN-, tBuNC) to the complex was studied using UV-vis and IR spectral measurements. The UV-vis spectra changed with isosbestic points at ca. 300 nm and 370 nm by addition of CN- or tBuNC. The IR spectra showed C≡N stretching vibrations at 2112 and 2197 cm-1, respectively, both of which are different from those of the respective metal-free ligands, CN- (2069 cm-1) and tBuNC (2135 cm-1). These results indicate that CN- and tBuNC can coordinate to the vacant site of the Co(III) complex. Furthermore, we tried the adsorption experiments of the complex into FSM (folded-sheet mesoporous metarial) with hydrophobic mesopores. The adsorption amount of PPh4[Co(L1-O4)] for FSM exhibited a high value of ∼40 w/w% in CH2Cl2, although such an adsorption behavior was not observed in MeOH.

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Periodical:

Advanced Materials Research (Volumes 11-12)

Main Theme:

Edited by:

Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang

Pages:

347-350

DOI:

10.4028/www.scientific.net/AMR.11-12.347

Citation:

T. Yano et al., "An N2S3-Type Co(III) Complex Adsorbed into Mesopores of FSM as a High-Performance Device", Advanced Materials Research, Vols. 11-12, pp. 347-350, 2006

Online since:

February 2006

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$35.00

[1] H. Yamada and M. Kobayashi: Biosci. Biotech. Biochem. Vol. 60 (1996), p.1391.

[2] S. Kobayashi and S. Shimizu: Nature Biotech. Vol. 16 (1998), p.733.

[3] W. Huang, J. Jia, J. Cummings, M. Nelson, G. Schneider and L. Lindqvist: Structure Vol. 5 (1997), p.691.

[4] S. Nagashima, M. Nakasako, N. Dohmae, M. Tsujimura, K. Takio, M. Odaka, M. Yohda, N. Kamiya and I. Endo: Nat. Struct. Biol. Vol. 5 (1998), p.347.

DOI: 10.1038/nsb0598-347

[5] A. Miynaga, S. Fushinobu, K. Ito and T. Wakagi: Biochem. Biophys. Res. Commun. Vol. 288 (2001), p.1169.

[6] J. Shearer, I.Y. Kung, S. Lovell, W. Kaminsky and J.A. Kovacs: J. Am. Chem. Soc. Vol. 123 (2001), p.463.

[7] L.A. Tyler, J.C. Noveron, M.M. Olmstead and P.K. Mascharak: Inorg. Chem. Vol. 42 (2003), p.5751.

[8] C.A. Grapperhaus, M. Li, A.K. Patra, S. Poturovic, P.M. Kozlowski, M.Z. Zgierski and M.S. Mashuta: Inorg. Chem. Vol. 42 (2003), p.4382.

DOI: 10.1021/ic026239t

[9] T. Ozawa, T. Ikeda, T. Yano, H. Arii, S. Yamaguchi, Y. Funahashi, K. Jitsukawa and H. Masuda: Chem. Lett. Vol. 34 (2005), p.18.

[10] τ is defined as (α−β)/60°, where α = largest angle and β = second largest angle (τ = 0. 0 for ideal square pyramidal; τ = 1. 0 for ideal trigonal bipyramidal). A.W. Addison, T.N. Rao, J. Reedijk, J.V. Rijn and G.C. Verschoor: J. Chem. Soc., Dalton Trans. (1984).

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