Syntheses and structural characterization of iron(II) and copper(II) coordination compounds with the neutral flexible bidentate N-donor ligands

Synthesis, characterization, and structures of two new tetranuclear copper complexes with azido/dicyanamide bridges containing chiral Schiff base ligand

“…In addition, absorp tion of 815 and 810 cm -1 is assigned to the δ(CH) bend ing vibrations of phenyl rings for I and II. Meanwhile, the spectra of I show strong sharp double characteristic ab sorptions of the ν(N=N) at 2068 and 2039 cm -1 , togeth er with the presence of a band at about 1288 cm -1 in dicating the presence of both EO bridging and termi nal azido ligands [16,17], which are in agreement with the crystal structure. While the appearance of three sharp and strong stretching frequencies in the 2310-2160 cm -1 region confirms the presence of dicyana mide anions in complex II.…”

A series of 1-D zinc(II) coordination polymers with 3-D supramolecular networks: synthesis, structural investigation, and NBO analysis

“…The absorption frequency below 2100 cm À1 proves coordination via the N atom and the terminal nature of the thiocyanato ligand [36,37]. The characteristic asymmetric stretching vibration of the N 3 ligand in 3 is observed as a strong band at 2056 cm À1 , and the symmetric stretching mode is exhibited at 1346 cm Àl [37,38]. Finally, several weak absorptions in the range 3060-2849 cm À1 can be assigned to aromatic, aliphatic, and iminic C-H stretching vibrations (IR spectra for L and 1-3 are included in the Supporting Information Figures S4-S7).…”

Investigation on the structural features of Zhundong subbituminous coal through ruthenium ion-catalyzed oxidation

“…31 According to the formation of HCCAs, some oxygen-, nitrogen-, and sulfur-containing organic species in ZSBC could exist in the rings of tetrahydrofuran, pyridine and pyrazole, and benzo[b]thiophene and dithiole, respectively. The compounds containing the rings could be used to synthesize pharmaceutical and agrochemical intermediates, 32,33 ligands for metal complexes, [34][35][36] and raw materials for producing explosives 37 and organic light emitting devices. 38,39 The BCAs formed from RICO of ZSBC include 11 nonsubstituted and 6 substituted ones (Table 3).…”