Reversible gas–solid reactions between the organometallic zwitterion [CoIII(η5-C5H4COOH)(η5-C5H4COO)] and vapours of difluoro- and chloro-acetic acids
- 16 May 2003
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in CrystEngComm
- Vol. 5 (29) , 154-158
- https://doi.org/10.1039/b301952g
Abstract
Exposure of the solid zwitterion [CoIII(η5-C5H4COOH)(η5-C5H4COO)], 1, to vapours of CHF2COOH quantitatively produces the corresponding salt of the cation [CoIII(η5-C5H4COOH)2]+, 2, namely 2-[CHF2COO]. The reaction with hydrated vapours of CH2ClCOOH produces the hydrated salt 2-[CH2ClCOO]·H2O. Crystalline [CoIII(η5-C5H4COOH)(η5-C5H4COO)] was also made to react in solution with CHF2COOH and CH2ClCOOH; single crystals of 2-[CHF2COO] and anhydrous 2-[CH2ClCOO] for X-ray diffraction were thus obtained, allowing comparison between computed and measured powder diffraction patterns. In the case of 2-[CH2ClCOO] there is evidence of formation of pseudo-polymorphic forms depending on the reaction condition (heterophase or solution). The heterogeneous reactions are fully reversible; the acids can be quantitatively removed by mild thermal treatment, which regenerates the starting material.Keywords
This publication has 36 references indexed in Scilit:
- Self-Assembly Using Organometalloligands as Spacers in the Controlled Formation of Isomeric 1D and 2D Supramolecular Quinonoid NetworksAngewandte Chemie International Edition in English, 2002
- A coordination network containing metal–organometallic secondary building units based on π-bonded benzoquinone complexesChemical Communications, 2002
- Trifluoroacetic acid in ancient freshwaterAtmospheric Environment, 2001
- N-(3-Cyanoprop-2-ynyl)carbazole: synthesis, crystal structure, and solid-state reactivityJournal of the Chemical Society, Perkin Transactions 2, 2001
- Combining hydrogen bonds with coordination chemistry or organometallic π-arene chemistry: strategies for inorganic crystal engineering †J. Chem. Soc., Dalton Trans., 2000
- Solid-State Polymerization of Aquabis(3-butenoato)calciumChemistry of Materials, 1998
- Energetics of organic solid-state reactions: electronic structure and photoreaction mechanism of the 2,5-distyrylpyrazine oligomer molecular crystalThe Journal of Physical Chemistry, 1994
- Energetics of organic solid-state reactions: the topochemical principle and the mechanism of the oligomerization of the 2,5-distyrylpyrazine molecular crystalJournal of the American Chemical Society, 1993
- The crystal and molecular structures of S-(+)-2,2-diphenylcyclopropanecarboxylic acid and of R-(+)-2,2-diphenyl-1-methylcyclopropanecarboxylic acid. A study of the environments of gas-solid reactions that exhibit anisotropic behaviorJournal of the American Chemical Society, 1977
- Reactions of molecular crystals with gases. II. X-ray structure of crystalline 4-chlorobenzoic acid and the anisotropy of its reaction with ammonia gasJournal of the American Chemical Society, 1974