Exploring weak intermolecular interactions in thiocyanate-bonded Zn(ii) and Cd(ii) complexes with methylimidazole: crystal structures, Hirshfeld surface analysis and luminescence properties

Abstract

We report the synthesis, spectroscopy and X-ray crystal structures of four Cd(ii) and Zn(ii) coordination compounds with imidazole derivatives and thiocyanate as co-ligands.

Cobalt Nanoparticles Encapsulated in N-Doped Carbon on the Surface of MXene (Ti3C2) Play a Key Role for Electroreduction of Oxygen

“…Accordingly, Figure b shows comparative Raman spectra of Co-MOF, Co-NC, Co-NC/Ti 3 C 2 -700, Co-NC/Ti 3 C 2 -800, and Co-NC/Ti 3 C 2 -900 composites. The peaks appear between 100 cm –1 and 400 cm –1 owing to the vibrations of cobalt ions; however, the peaks appearing between 800 cm –1 and 1500 cm –1 correspond to the 2-methyl imidazole of Co-MOF, shown in Figure b . Further, Co-NC (red color spectrum) shows the peaks at 189.0 cm –1 and 465.8 cm –1 due to the stretching vibrations of Co–O in Co 3 O 4 , and the one at 675.9 cm –1 is attributed to the stretching vibrations of C–N (aliphatic) in Co-NC. , Moreover, the Raman spectra of all the composites, Co-NC/Ti 3 C 2 -700, Co-NC/Ti 3 C 2 -800, and Co-NC/Ti 3 C 2 -900, show the peak at 168.1 cm –1 analogous to the Ti–C (stretching vibrational modes) in the Ti 3 C 2 T x backbone .…”

Synthesis, microstructure and volumetry of novel metal thiocyanate ionic liquids with [BMIM] cation

“…Very recently some of us have published the thermochromism that present another metal thiocyanate based IL, the [BMIM] 4 Ni(SCN) 6 , which was synthesized by us [37]. Finally, novel metal thiocyanates with zinc and cadmium based in methyl imidazole have been published this year and their structure resolved by single crystal X-ray diffraction [38], which present luminescence properties. Definitively, ILs based in metal thiocyanates are very promising materials which have potential applications in electrochemical and photonic devices, presenting as well magnetic and catalytic properties.…”

MOF-on-MOF heterostructures with core–shell and core–satellite structures via controllable nucleation of guest MOFs

“…In addition, the appearance of a new peak at 1101 cm −1 (marked with a blue dashed line) and a shoulder at ∼936 cm −1 (indicated by an arrow) suggests the presence of 2-MeIM in ZIF-90/M. Compared with the corresponding peaks at 1111 cm −1 (C-C-H formation vibration) and 942 cm −1 (-CH 3 in-plane bending vibration and C-C-H formation vibration) of 2-MeIM (marked with a red dashed line), 42 these new peaks have a certain red shift. These observations suggest that the added 2-MeIM can coordinate with the exposed Zn central atoms on ZIF-90, causing the weakening of -CH 3 and C-C-H bonds.…”