Stabilization of O-Mn-O clusters (Mn-5) in three dimensionally extended MOF structures: synthesis, structure and properties

Bhattacharya, Saurav and Ramanujachary, KV and Lofland, SE and Magdaleno, Travis and Natarajan, Srinivasan (2012) Stabilization of O-Mn-O clusters (Mn-5) in three dimensionally extended MOF structures: synthesis, structure and properties. In: CRYSTENGCOMM, 14 (13). pp. 4323-4334.

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Abstract

Four new three-dimensional Mn2+ ion-containing compounds have been prepared by employing a hydrothermal reaction between Mn(CH3COO)(2)center dot 4H(2)O, sulfodibenzoic acid (H(2)SDBA), imidazole, alkali hydroxide and water at 220 degrees C for 1 day. The compounds have Mn-5 (1-4) clusters connected by SDBA, forming the three-dimensional structure. A time and temperature dependent study on the synthesis mixture revealed the formation of a one-dimensional compound, Mn(SDBA)(H2O)(2), at lower temperatures (T <= 180 degrees C). The stabilization of the fcu related topology in the compounds is noteworthy. Magnetic studies indicate strong anti-ferromagnetic interactions between the Mn2+ ions within the clusters in the temperature range 75-300 K. The rare participation of a sulfonyl group in the bonding is important and can pave way for the design of new structures.

Item Type:	Journal Article
Publication:	CRYSTENGCOMM
Publisher:	ROYAL SOC CHEMISTRY
Additional Information:	Copyright for this article belongs to Crystengcomm
Keywords:	METAL-ORGANIC FRAMEWORKS; SINGLE-MOLECULE MAGNETS; HYDROTHERMAL SYNTHESIS; COORDINATION POLYMER; CRYSTAL-STRUCTURE; CUBIC TOPOLOGY; TEMPERATURE; COMPLEXES; NETWORKS; NI
Department/Centre:	Division of Biological Sciences > Biochemistry Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Physical & Mathematical Sciences > Physics
Date Deposited:	14 Jul 2012 06:53
Last Modified:	14 Jul 2012 06:54
URI:	http://eprints.iisc.ac.in/id/eprint/44813

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