(2,9-Dimethyl-1,10-phenanthroline-κ2 N,N′)diiodidocadmium

In the title compound, [CdI2(C14H12N2)], the mol­ecule sits on a crystallographic twofold axis. The coordination sphere of the CdII atom is built of two symmetry-equivalent N atoms of one 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand and two symmetry-equivalent I atoms, thus forming a distorted tetra­hedral geometry. Inversion-related mol­ecules inter­act along the c-axis direction by π–π stacking inter­actions between the phenanthroline ring systems, with centroid–centroid distances of 3.707 (9) and 3.597 (10) Å

Synthesis and Characterization of Hybrid Materials Consisting of n-octadecyltriethoxysilane by Using n-Hexadecylamine as Surfactant and Q0 and T0 Cross-Linkers

Novel hybrid xerogel materials were synthesized by a sol-gel procedure. n-octadecyltriethoxysilane was co-condensed with and without different cross-linkers using Q0 and T0 mono-functionalized organosilanes in the presence of n-hexadecylamine with different hydroxyl silica functional groups at the surface. These polymer networks have shown new properties, for example, a high degree of cross-linking and hydrolysis. Two different synthesis steps were carried out: simple self-assembly followed by sol-gel transition and precipitation of homogenous sols. Due to the lack of solubility of these materials, the compositions of the new materials were determined by infrared spectroscopy, 13C and 29Si CP/MAS NMR spectroscopy and scanning electron microscopy

Utilisation of halophosphine and aminophosphine ligands in organoruthenium chemistry

This thesis concerns the syntheses and reactivity of areneruthenium complexes containing halophosphine and aminophosphine ligands. Methylcyclopentadienylruthenium chemistry is also developed together with corresponding tertbutylcyclopentadienylruthenium" chemistry. All the new compounds prepared are pseudo-octahedral with the arene or cyclopentadienyl ligand being facially coordinated.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

XRD/HSA, noncovalent interactions and influence of solvent polarity on spectral properties of dithiocarbazate schiff base and its cis-Cu(II) complex: Experimental and theoretical studies

A N,S-bidentate ligand (LH) was synthesized via the condensation of S-benzyldithiocarbazate with acetophenone. The produced Schiff base ligand was reacted with a copper(II) salt to yield a neutral cis-Cu(II) complex. The influence of solvent polarity on spectral properties were demonstrated for the new complex in different organic solvents. The global reactivity parameters were estimated by means of energy values of the frontier molecular orbitals. Both the desired LH and its complex have been characterized by XRD-crystal analysis. In solid state the LH exists in a thione tautomeric form, while the deprotonated form of is chelated to the Cu(II) center through neutral nitrogen of azomethine and ionic sulfur of thiol, giving rise to tetrahedrally distorted square planar geometry around the metal center, in which the two ligands coordinated in cis-configuration. The noncovalent interactions were evaluated via Hirshfeld surface analysis (HSA), reflecting the presence of four position of short contacts for both the free ligand and its complex. Moreover, the formation of hydrogen bonds of the types NH⸱⸱⸱S=C and CH⸱⸱⸱S=C were observed in the ligand structure, while H⸱⸱⸱Caromatic interactions were perceived in both structures of the ligand and complex, approved by the XRD-packing results

Synthesis, Identification and NMR of New Trans-dichloro-piperazine bis(ether-phosphine)ruthenium(II) Complex

Trans-dichloro-piperazine-bis(ether-phosphine)ruthenium(II) complex of general  formula Cl2Ru(h1-Ph2PCH2CH2OCH3)2(C4H10N2) 2 was made available in good yield through treating equimolar amounts of Cl2Ru(PÇO)2 complex 1 with piperazine as co-ligand. The hemilability ring open reaction of ether-phosphine in complex 1 to prepare complex 2 was monitored by 31P-NMR. The structure of complex 2 was confirmed by elemental analysis, IR, 31P-NMR 1H-NMR,13C-NMR, FAB-MS and UV-visible spectroscopy

Spectroscopic Insight into Tetrahedrally Distorted Square Planar Copper(II) Complex: XRD/HSA, Physicochemical, DFT, and Thermal Investigations

The reaction of bidentate N-S-thione-Schiff base, (E)-benzyl 2-(1-(4-chlorophenyl)-ethylidene)hydrazinecarbodithioate, with Cu(NO3)2·3H2O produced a cis-Cu(II) complex. The molecular structure was confirmed and characterized by CHN-EA, FAB-MS, IR, and UV-Vis analyses. The XRD supported cis-isomer of the bis anionic bidentate N (azomethine) and S (thiol) ligand coordination mode in tetrahedrally distorted square planar, rarely reported in the literature. The results of the XRD-bond lengths were in perfect agreement with the density functional theory (DFT) calculation. DFT-calculated angles around the Cu(II) center displayed slightly less distortion around the metal center from those of XRD. Additionally, the thermal stability of the complex was evaluated via thermal gravimetric analysis (TGA). Two-dimensional fingerprint (2D-FP), Hirshfeld surface analysis (HSA), and molecular electrostatic potential (MEP) support the XRD-packing results with the existence of the H⸱⸱⸱Cl and CH⸱⸱⸱π bonds as the main interactions in the crystal lattice of the desired complex

One Step Synthesis of NiO Nanoparticles via Solid-State Thermal Decomposition at Low-Temperature of Novel Aqua(2,9-dimethyl-1,10-phenanthroline)NiCl2 Complex

[NiCl2(C14H12N2)(H2O)] complex has been synthesized from nickel chloride hexahydrate (NiCl2·6H2O) and 2,9-dimethyl-1,10-phenanthroline (dmphen) as N,N-bidentate ligand. The synthesized complex was characterized by elemental analysis, infrared (IR) spectroscopy, ultraviolet-visible (UV-vis) spectroscopy and differential thermal/thermogravimetric analysis (TG/DTA). The complex was further confirmed by single crystal X-ray diffraction (XRD) as triclinic with space group P-1. The desired complex, subjected to thermal decomposition at low temperature of 400 °C in an open atmosphere, revealed a novel and facile synthesis of pure NiO nanoparticles with uniform spherical particle; the structure of the NiO nanoparticles product was elucidated on the basis of Fourier transform infrared (FT-IR), UV-vis spectroscopy, TG/DTA, XRD, scanning electron microscopy (SEM), energy-dispersive X-ray spectrometry (EDXS) and transmission electron microscopy (TEM)