Synthesis, Crystal Structure and Infrared Characterization of Bis(4-dimethylamino-pyridinium) Tetrachlorocuprate

Abstract

447

Crystal structure of tris[4-(dimethylamino)pyridinium] tris(oxalato-κ2O,O′)chromate(III) tetrahydrate

“…The Cr-O bond lengths vary from 1.9577 (11) to 1.9804 (11) Å and are similar to those found in the guanidinium tris(oxalato)chromate(III) salt (Golič & Bulc, 1988). Bond lengths and angles in the organic cations, [C 7 H 11 N 2 ] + , are in agreement with those found in salts with the same cationic entity (Nenwa et al, 2010;Ghouili et al, 2010;Benslimane et al, 2012;Ben Nasr et al, 2015).…”

Crystal structure and Hirshfeld surface analysis of bis(2,6-diaminopyridinium) tetrachloridocobaltate(II)

“…Pyridinium cations always possess an expanded angle of C-N-C in comparison with the parent pyridine (Ben Nasr et al, 2015). Thus, the observed angles in (I) of C1-N2-C5 and C6-N5-C10 are 124.2 (3) and 124.1 (3) , respectively, are wider than that in neutral pyridine (116.6 ), indicating that protonation takes place on the pyridine ring N2 and N5 atoms.…”

Synthesis and 3D Network Architecture of 1- and 16-Hydrated Salts of 4-Dimethylaminopyridinium Decavanadate, (DMAPH)6[V10O28]·nH2O

“…These bands have been attributed to asymmetric and symmetric H-O-H stretching vibration modes [41] and they must be overlapped with other stretching bands coming from N + -H¨¨¨O dec and O w -H¨¨¨O dec moieties. In the same spectra, the bands at 3050 and 2900 cm´1 are respectively assigned to the (C-H) aromatic and (C-H) aliphatic stretching vibrations [42].…”

“…Calc. for C 42 Compound (2) was synthetized as mentioned above, but the mixture of a+b was kept at 283 K for one day. The main product consisted of orange single crystal polyhedral bars (Figure 5b).…”