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Mechanosensitive metal–ligand bonds in the design of new coordination compounds (CROSBI ID 174497)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Užarević, Krunoslav ; Rubčić, Mirta ; Radić, Maja ; Puškarić, Andreas ; Cindrić, Marina Mechanosensitive metal–ligand bonds in the design of new coordination compounds // Crystengcomm, 13 (2011), 13; 4314-4323. doi: 10.1039/c0ce00807a

Podaci o odgovornosti

Užarević, Krunoslav ; Rubčić, Mirta ; Radić, Maja ; Puškarić, Andreas ; Cindrić, Marina

engleski

Mechanosensitive metal–ligand bonds in the design of new coordination compounds

This article describes selective cleavage of coordination bonds by mechanochemical methods and further application of thus obtained precursors for a facile preparation of new coordination compounds. In the class of dioxomolybdenum(VI) coordination compounds, [MoO2L(ROH)], where L stands for a tridentate dianionic ONO ligand and ROH represents different alcohol molecules, mechanical treatment induces a cleavage of the molybdenum–alcohol bond which can thus be considered as a mechanosensitive bond. Alcohol removal can also be accomplished by the heating. Both grinding and heating thus resulted in highly reactive, coordinatively unsaturated compounds, an orange amorphous pentacoordinated [MoO2L] (I) and brown polymeric [MoO2L]n ((I)n), respectively. Even though both I and (I)n are stable at room temperature, they can be interconverted using only solvent-free techniques, a conversion followed by a colour change of the sample. The tendency of such unsaturated complexes to fulfil their coordination sphere was exploited for efficient solution and solvent-free syntheses of octahedral molybdenum complexes with selected O- and N-donating ligands. The herein used solution and solvent-free synthetic approaches have proved to be superior under specific conditions and their respective advantages and weaknesses are discussed.

mechanochemistry; coordination compounds; mechanosensitive bonds

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Podaci o izdanju

13 (13)

2011.

4314-4323

objavljeno

1466-8033

10.1039/c0ce00807a

Povezanost rada

Kemija

Poveznice
Indeksiranost