Syntheses and characterizations of two- dimensional heteronuclear tetracyanonickelate(II) complexes with 4-ethylpyridine and investigation of the catalytic activity of [Cd(4epy)2Ni(μ-CN)4]n

JOURNAL OF COORDINATION CHEMISTRY, cilt.76, sa.16-24, ss.1802-1816, 2023 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 76 Sayı: 16-24
Basım Tarihi: 2023
Doi Numarası: 10.1080/00958972.2023.2280499
Dergi Adı: JOURNAL OF COORDINATION CHEMISTRY
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Chimica, Metadex
Sayfa Sayıları: ss.1802-1816
Eskişehir Osmangazi Üniversitesi Adresli: Evet

Three new 2D heteronuclear tetracyanonickelate(II) complexes

with 4-ethylpyridine (4epy), [Cu(4epy)2Ni(m-CN)4]n (1),

[Zn(4epy)2Ni(m-CN)4]n (2) and [Cd(4epy)2Ni(m-CN)4]n (3), were synthesized

and characterized by vibrational (FT-IR and Raman) spectroscopy,

elemental and thermal analyses, single crystal (SC-XRD)

and powder X-ray diffraction (PXRD) techniques. The single crystal

X-ray analysis reveals that each metal ion (Cu(II), Zn(II), and Cd(II))

is coordinated by two nitrogen atoms from 4epy ligands and four

nitrogen atoms from cyanide ligands and Ni(II) ions are coordinated

by four carbon atoms from cyanide ligands showing a distorted

octahedral and square planar coordination geometries,

respectively. The most outstanding features of the complexes are

the weak intermolecular C–H��Ni interactions between the Ni(II)

ion and hydrogen atom of the ethyl group of the 4epy ligand.

Adjacent 2D structures are further combined by these C–H��Ni

interactions, generating a 3D network. The heterogeneous catalytic

activity of 3 was investigated for oxidation of some primary

and secondary aliphatic or aromatic alcohols; no acid formation

was observed in some aromatic alcohols after 24 h and 100%

aldehyde selectivity was determined.