Heteronuclear Hexacyanometallate(III) Coordination Polymers (Cd/Cr, Cd/Fe, Cd/Co) with 3-(Aminomethyl)pyridine: Synthesis, Characterization, and Catalytic Activities for the Peroxidative Oxidation of Benzylic Alcohols

Three new heteronuclear hexacyanometallate(III) coordination polymers (CPs), [Cd 3 (µ-3ampy) 4 (H 2 O) 4 Cr 2 (µ-CN) 8 (CN) 4 ] n ( 1 ), [Cd 3 (µ-3ampy) 2 (H 2 O) 2 Fe 2 (µ-CN) 5 (CN) 7 ] n ( 2 ) and [Cd 3 (µ-3ampy) 4 (H 2 O) 4 Co 2 (µ-CN) 8 (CN) 4 ] n ( 3 ), were synthesized with 3-(aminomethyl)pyr...

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Published in:Journal of inorganic and organometallic polymers and materials 2024-03, Vol.34 (3), p.1081-1091
Main Authors: Kekeç, Seray, Kürkçüoğlu, Güneş Süheyla, Ünver, Hakan, Şahin, Onur, Yeşilel, Okan Zafer
Format: Article
Language:English
Subjects:
Aldehydes
Benzyl alcohol
Carboxylic acids
Chemical synthesis
Chemistry
Chemistry and Materials Science
Coordination polymers
Inorganic Chemistry
Organic Chemistry
Oxidation
Polymer Sciences
Pyridines
Single crystals
Thermal analysis
X ray powder diffraction
X-ray diffraction
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Summary:Three new heteronuclear hexacyanometallate(III) coordination polymers (CPs), [Cd 3 (µ-3ampy) 4 (H 2 O) 4 Cr 2 (µ-CN) 8 (CN) 4 ] n ( 1 ), [Cd 3 (µ-3ampy) 2 (H 2 O) 2 Fe 2 (µ-CN) 5 (CN) 7 ] n ( 2 ) and [Cd 3 (µ-3ampy) 4 (H 2 O) 4 Co 2 (µ-CN) 8 (CN) 4 ] n ( 3 ), were synthesized with 3-(aminomethyl)pyridine (3ampy) ligand. All CPs were characterized by FT-IR, Raman, elemental, thermal analysis as well as single crystal X-ray diffraction and powder X-ray diffraction techniques. The single crystal X-ray diffraction analyses shows that the CPs 1 and 3 are two-dimensional structures, whereas CP 2 is a three-dimensional structure where two adjacent metal ions ions are linked via 3ampy and CN bridges. The coordination spheres of all CPs show distorted octahedral geometries. CP 3 was mainly tested as heterogenous catalyst for peroxidative oxidation of benzyl alcohol and its derivatives (4-chloro, 4-bromo, 4-methyl, 4-metoxy and 4-nitro benzyl alcohol). From the results, the highest aldehyde formation was obtained from the oxidation of benzyl alcohol with overall yield as 100%. In addition, catalytic reactions exhibited high selectivity towards aldehyde and no over-oxidation product (carboxylic acid) was observed.
ISSN:1574-1443
1574-1451
DOI:10.1007/s10904-023-02861-z