Coordination Chemistry of 3D Transition Metals

Compound 2, with the composition Cd(ClO4)2(phen)2, crystallizes in the monoclinic P-1 (No.2) space group. The mononuclear unit resides on an inversion center and its structure is shown in Figure 3a. The cadmium atom coordinates with four nitrogen atoms of two chelating phen group and two oxygen atoms from monodentate perchlorate anions to form a distorted N4O2-octahedral surrounding. In the equatorial platform, the Cd–N bonds are equal to 2.306(5) and 2.334(5) Å, and the apical Cd–O bonds are equal to 2.450(5) Å (Table 2). The ClO4- anions are arranged above and below the complex equatorial plane. It might be emphasized that the similar situation of metal cation in N4 phen equatorial plane has been documented in 7 transition metal coordination

In addition, it has many cofactor binding sites such as Mg and Zn and interacts non-covalently with metal ions.5

The intermolecular bonding and chemical properties of the as-synthesized BN were characterized by FTIR spectroscopy (Figure 4c). The FTIR analysis of T-BN shows two strong absorption peaks at ∼1382 and ∼790 cm−1, ascribed to the in-plane B–N transverse stretching vibration and the B–N–B out-of-plane bending vibration, respectively [35–37]. The broad absorption peaks at ∼3415 and ∼3227 cm−1 indicate the presence of residual B−OH and B−NH2 groups, respectively. The same FTIR results are also observed for F-BN. However, the higher intensity of the IR peaks of F-BN as compared to that of T-BN indicates the existence of stronger interlayer interaction because of the presence of more number of amino functional groups at the F-BN surface, strongly reducing the porosity and decreasing the surface area of the F-BN materials [38].

Copper is used as it has the lowest affinity and solubility of carbon, as it does not form a carbide phase, relative to Ni and Co . This is attributed to copper’s filled 3d electron shell, possessing an electron configuration of [Ar] 3d104s1, which due to its symmetrical electronic configuration reduces reciprocal electronic repulsions. In addition, copper is able to transfer charge from the π electrons of the sp2 carbons to the empty 4s orbital of

In 2006, Franscesc Lloret et al. employed unimodal and bimodal silica-based mesoporous materials as support hosts for octanuclear Ni(II) oxamate complex44 of formula {[Ni2(mpba)3][Ni(dpt)H2O)]6}(ClO4)4·12.5H2O}, (Ni8) with mpba = m-phenylenedioxamate and dpt = dipropylenetriamine. This complex possesses a moderately anisotropic (S = 4) ground spin state (D = -0.23 cm-1) and exhibits slow magnetic relaxation below TB = 3.0 K in the crystalline state.

The purpose of this study is to obtain the theoretical information about the molecular structure and electronic parameters of 2-phenyl-2-imidazoline.Density functional theory has been adopted for the precise study of the molecular geometry and electronic distribution. Here we study the experimental and theoretical study of the 2-phenyl-2-imidazoline for the first

My research themes and scholarly interests focus on interdisciplinary science education for both undergraduate science majors and non-science majors. I plan to look into the design and development of new functional materials1,2 that could go beyond the conventional molecular dimensions2 and include bioinspired assemblies, supramolecular architectures, and nanoscale materials. Molecular assembly,2 a key feature of natural “active” materials, appears to be important for the chemical origins of life.3 Highly selective biomolecular recognition can guide the formation of “smart” bioinspired materials,2,4 playing fundamental roles in the development of biomimetic supramolecular designs, bio-conjugated hybrid nanostructures, and self-assembled

NMOFs from the Gd and BHC shows that it is possible to process unique NMOFs from the same ligand and metal combinations by utilizing the multipurpose metal-ligand coordination modes.

My career in energy technology and surface chemistry began in 2012, when I started my master’s coursework and research in electrochemistry at the University of Louisville’s Department of Chemistry. Since then I have developed an extensive skillset, focusing mainly on the development and usage of semiconductor materials such as titanium oxide (TiO2), tin-oxide (SnO2), birnessite-manganese oxide (b-MnO2), and neodymium oxide (Nd2O3). I have extensively studied the photophysics and photochemistry of energetic nanomaterials in order to explore the fundamentals of charge transfer dynamics, catalytic properties, and mechanisms for the conversion of solar energy to electric energy to produce renewable electricity. Later in my doctoral

MMCs are complexes exhibiting enhanced magneto-caloric effect (MCE), which is based on the change of magnetic entropy upon application of a magnetic field and can be exploited for molecular refrigeration.6 Contrary to SMM behaviour, which is favoured by highly anisotropic Ln3+ ions, the MCE is improved in molecules containing isotropic metal ions and exhibiting weak magnetic coupling between them. This is because in these conditions multiple low-lying excited, field-accessible states are generated, which can contribute to the magnetic entropy of the system. In view of the above considerations, 3d-4f dinuclear complexes containing the isotropic Gd3+ ion, which has the maximum entropy value calculated as Rln(2SGd + 1)/MGd = 110 Jkg-1K-1 and the MnIII ion (despite being anisotropic has a maximum entropy value of 271 Jkg-1K-1) could be good candidates for constructing magnetic coolers.

aElectrochemistry Research Group, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Kingdom of Saudia Arabia

show numerous potential applications owing to their distinctivetwo-dimensional assembly and related band structure. Graphene has gained attention of many scientists since its innovation

The lanthanide (Ln) elements comprise a unique series of metals in the periodic table. These metals are distinctive in terms of size, valence orbitals, electrophilicity and magnetic and electronic properties, such that some members of the series are currently the best metals for certain applications. These are some of the largest non-radioactive metals in the periodic table. For reactions in which a large trivalent ion is needed, they may be the best.

To the best of our knowledge, only three related publications have been reported to date.[9,10] In 2013 Sala et al.[10a], and Babu and Parquette[10b] independently reported the asymmetric synthesis of β-amino-α-thiocyanate compounds via the desymmetrization of meso-aziridines with TMSNCS using combined Ca(II)/Mg(II) VAPOL phosphate salts and chiral dimeric yttrium-salen complexes as catalysts. Quite recently, Nakamura et al. also reported the same transformation using chiral imidazoline−phosphoric

Among the others metal NPs, the recent interest in the CuNPs is propelled by both, the advances of these NPs as a frugal alternatives for sumptuous metal NPs in the area of micro-electronics applications as well as the possibility of exploring them as ultimate antimicrobial agent.