1260096-13-6Relevant articles and documents
Selective recognition of Fe3+ and CrO42- ions using a Zn(ii) metallacycle and a Cd(ii) coordination polymer and their heterogeneous catalytic application
Rani, Pooja,Sharma, Anjali,Husain, Ahmad,Kumar, Gulshan,Kaur, Harpreet,Bhasin,Kumar, Girijesh
, p. 7447 - 7459 (2019)
We report the syntheses and structural characterization of a Zn(ii) metallacycle [Zn2{(L)2(DMF)2(NO3)2}]·(NO3)2 (1) along with a Cd(ii) coordination polymer [{Cd1(L)s
Lanthanide-based coordination polymers as promising heterogeneous catalysts for ring-opening reactions
Kumar, Gulshan,Kumar, Girijesh,Gupta, Rajeev
, p. 21352 - 21361 (2016/03/08)
This work presents the synthesis and structural characterization of Eu3+- and Tb3+-based coordination polymers starting from a Co3+-based metalloligand offering appended arylcarboxylic acid groups. Both coordination polymers function as reusable heterogeneous catalysts for ring-opening reactions utilizing amines, alcohols, thiols, and azides as the nucleophiles. The catalytic results illustrate an excellent control over the regioselectivity whereas a filtration test and mechanistic studies substantiate Lewis-acid catalyzed activation of the epoxide during the reaction.
Heterometallic coordination polymers: syntheses, structures and heterogeneous catalytic applications
Bansal, Deepak,Pandey, Saurabh,Hundal, Geeta,Gupta, Rajeev
, p. 9772 - 9781 (2015/12/01)
A metalloligand Na[Co(L1)2] (1) of the ligand H2L1 (N2,N6-bis(4,5-dihydrothiazol-2-yl)pyridine-2,6-dicarboxamide) offering appended thiazoline rings has been used for the synthesis of one-dimensional {Co3+-Zn2+} (2), {Co3+-Cd2+} (3) and {Co3+-Hg2+} (4) coordination polymers. 1 offers appended thiazoline rings having both soft sulphur and hard nitrogen donors. The crystal structures of 2 and 3 display the coordination of hard thiazoline-N donors to Zn2+ and Cd2+ ions. Interestingly, 4 illustrates the bonding through both hard thiazoline-N and soft thiazoline-S donors. The three heterometallic coordination polymers have been used as reusable heterogeneous catalysts for the ring-opening reactions of oxiranes and thiiranes; Knoevenagel condensation of benzaldehydes and benzothialdehydes; and cyanation reactions of aldehydes and carbothialdehydes. Our results demonstrate that the relative size and Lewis acidity of secondary metals potentially control the catalytic outcome via preferential interaction with the substrates.