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2005
Iron
I 7100
32- 031
Coordination Chemistry of the Hexavacant Tungstophosphate [H2P2W12O48]12with Fe(III) Ions: Towards Original Structures of Increasing Size and Complexity.
— As revealed by single crystal XRD compound (IV) crystallizes in the monoclinic
space group C2/c. Its structure derives from the hexavacant α-[H2P2W12O48]12- anion by
filling up the six vacancies with Fe atoms. The substituted Wells-Dawson species
{P2W12Fe6} thus formed supports three additional Fe atoms. Because the quality of the
crystals of (VI) is not suitable for single crystal XRD, crystals of (VIII) are used for the
structure determination. Na16K10[H55 P8W49 Fe27O248]·90H2O crystallizes in the triclinic
space group P1. This cluster with 27 FeIII centers, is the second largest iron cluster characterized so far. — (GODIN, B.; CHEN, Y.-G.; VAISSERMANN, J.; RUHLMANN,
L.; VERDAGUER, M.; GOUZERH*, P.; Angew. Chem., Int. Ed. 44 (2005) 20,
3072-3075; Lab. Chim. Inorg. Materiaux Mol., CNRS, Univ. P. et M. Curie, F-75252
Paris, Fr.; Eng.) — W. Pewestorf
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