Syntheses, Crystal Structures, and Properties of Three Copper(II) Complexes Constructed by 4‐(4,6‐Bis(1H‐pyrazol‐1‐yl)‐1,3,5‐triazin‐2‐yl)morpholine

Abstract

Three copper(II) complexes of the polydentate N‐donor ligand [4‐(4,6‐bis(1H‐pyrazol‐1‐yl)‐1,3,5‐triazin‐2‐yl)morpholine] (L) with chlorides, nitrates, and perchlorates as anions, namely, [CuCl2(L)]·0.5(MeCN) (1), [Cu(NO3)2(H2O)(L)]·(MeCN) (2), and [Cu(L)2](ClO4)2·(MeCN) (3) were synthesized and structurally characterized by IR, elemental analysis and X‐ray crystallographic analysis. In these complexes, the L ligand binds the copper(II) cation in the tridentate N3 form. The coordination arrangement around the central copper(II) atom is distorted square‐pyramidal in 1 but it is distorted octahedral in 2 and 3. The interesting noncovalent interactions such as hydrogen bonds, π–π stacking, and anion–π interactions present in the solid‐state structures are discussed. The crystal results reveal that the counteranions play important roles in determining the diverse structures of these complexes. Moreover, the PXRD, TG, DRS, and fluorescence properties of compounds 1–3 were investigated.

Coordinating Ability of Anions, Solvents, Amino Acids, and Gases towards Alkaline and Alkaline‐Earth Elements, Transition Metals, and Lanthanides

“…The same complex coordinates water molecules when used as as olvent, whilea cetonitrile appears only as as olvationm olecule. [30] These results nicely follow the sequence of a TM indices:…”

“…The formation of bimetallic Pt-Pd nanoparticles from organometallicc omplexes in differents olvents was studied by Leitner and co-workers, who attributed the fact that in THF the Pt/Pd ratio is much larger than in n-pentane, toluene or supercritical CO 2 to the possibility of strong solute solvent interactions between the 16-electron Pt precursor and the more coordinating THF. [61] In another example, the synthesis of M 4 Ag 44 (p-MBA) 30 molecular nanoparticles (whereMis an alkali metal and p-MBA is the mercaptobenzoate anion) in aqueouss olution carrying a small amount of ac oordinating agent (acetate, DMSO,D MF, pyridine, water at pH 12 or acetone) gave yields that correspond approximately to their coordinating abilities. [62] Burrows et alc arriedo ut as tudy of crystalline nanoparticle aggregation of goethite (a-FeOOH), anatase( TiO 2 ), and ferrihydrite (Fe 5 HO 8 ·4 H 2 O) in several solvents.…”

The crystal structure of bis(isothiocyanato-κ1N)-(methanol-κ1O)-[2-morpholine-4-yl-4,6-di(pyrazol-1-yl)-1,3,5-triazine-κ3N,N′,N′′] manganese(II), C16H18MnN10O2S2

“…The structure design and synthesis of new manganese complexes are of general interest and beneficial to the research of magnetic materials [9,10]. In the course of our efforts to explore new supramolecular architectures using mpt [11] and NCS − ligands, the title compound was successfully synthesized and determined by single-crystal X-ray analysis. The molecular unit comprises one Mn(II) cation, one mpt ligand, two NCS − anions and one methanol ligand.…”

Synthesis, X-ray Structure, Hirshfeld Analysis of Biologically Active Mn(II) Pincer Complexes Based on s-Triazine Ligands

“…In continuation to our interest with the s-triazine pincer complexes [21][22][23][24], and in light of the interesting recently reported data in literature [25][26][27][28][29][30][31], we are presenting here the synthesis of two new Mn(II) complexes with the s-triazine based NNN-pincer ligands shown in Figure 1. The structural In continuation to our interest with the s-triazine pincer complexes [21][22][23][24], and in light of the interesting recently reported data in literature [25][26][27][28][29][30][31], we are presenting here the synthesis of two new Mn(II) complexes with the s-triazine based NNN-pincer ligands shown in Figure 1. The structural features of both complexes are elucidated.…”