Synthesis and solid state self-assembly of a 1,4-diazepine derivative: Water cluster as molecular glue and conformational isomerism

Bis(2,3,5,6‐tetrafluorothiophenolato) Iron(III) (α,α,α,β)‐Tetrakis(o–pivalamidophenyl)porphyrin Ion Complex: Synthesis, Spectroscopic, Structural Characterization and Computational Studies

In this work, we present the synthesis of the cryptand‐222)potassium bis(2,3,5,6‐tetrafluorothiophenolato)[α,α,α,β‐tetrakis(o‐pivalamidophenyl) porphyrinato]iron(III) with the formula [K(cryp‐222)][FeIII(TpivPP)(C6HF4S)2] (I). Notably, we started with the (α,α,α,α) atropisomer and the final product is made by the (α,α,α,β) atropisomer as shown by the X‐ray molecular structure of complex I. The crystal structure of our P450 model indicates that the mean equatorial distance between the central ion and the four nitrogen atoms of the pyrrole ring of the porphyrin (Fe−Np) is equal to 1.997(6) Å indicating that complex I is a ferric low‐spin complex (S=1/2). Both X‐ray molecular structure and Hirshfeld surface analysis show that the crystal packing of I is made by C−H⋅⋅⋅O and C−H⋅⋅⋅F weak intermolecular hydrogen interactions involving neighboring [FeIII(TpivPP)(C6HF4S)2]− ion complexes. Furthermore, the characteristics of the HOMO and LUMO molecular frontier orbitals and the reactivity of complex I were investigated by DFT/B3LYP/LanL2DZ level of DFT and a Molecular Electrostatic Potential (MEP) calculation has been made to determine the nucleophilic‐electrophilic of this new ferric metalloporphyrin.

Fumarato and Phthalato Bridged Dinuclear Metal-Organic Cu(II) and Mn(II) Compounds involving Infinite Fumarate-water Assemblies and Unusual Structure-guiding H-bonded Synthons: Antiproliferative Evaluation and Theoretical Studies

Two new dinuclear coordination compounds viz. [Cu2(µ-fum)(phen)2(H2O)6](fum)•6H2O (1) and [Mn2(µ-phth)2(phen)4]•2H2O (2) (phen = 1,10-phenanthroline, fum = fumarate and phth = phthalate) have been synthesized and characterized by elemental analysis, single...

Synthesis and crystal structure of catena-poly[[hexa-aqua{μ3-2-[bis-(carboxyl-atometh-yl)amino]-terephthalato}dicobalt(II)] penta-hydrate] containing water tapes and penta-mers

The title coordination polymer, {[Co2(C12H7NO8)(H2O)6]·5H2O} n , was crystallized at room temperature from an aqueous solution of 2-aminodi-acetic terephthalic acid (H4adtp) and cobalt(II) nitrate. The asymmetric unit consists of one adtp4- ligand, one and two half CoII ions, six water ligands coordinated to CoII ions and five uncoordinated water mol-ecules. Two of the cobalt cations lie on centres of inversion and are coordinated in octa-hedral O2(OH2)4 environments, whereas the other adopts a slightly distorted octa-hedral NO3(OH2)2 environment. The crystal structure contains parallel stacked, one-dimensional zigzag chains, {[Co2(C12H7NO8)(H2O)6]} n , which assemble into a three-dimensional supra-molecular architecture via networks of hydrogen bonds involving the coordinated and free water mol-ecules. One-dimensional 'water tapes' are formed, containing alternating six-membered and twelve-membered rings of water mol-ecules, together with water penta-mers, in which a central uncoordinated water mol-ecule is hydrogen bonded to two coordinated and two free water mol-ecules in a tetra-hedral arrangement.

Biologically relevant and energetically significant cooperative ternary (π–π)2/(π–π)1/(π–π)2 assemblies and fascinating discrete (H2O)21 clusters in isostructural 2,5-pyridine dicarboxylato Co(ii) and Zn(ii) phenanthroline compounds: antiproliferative evaluation and theoretical studies

Cytotoxicity in cancer cells with structure activity relationship has been explored in isostructural Co(ii) and Zn(ii) compounds involving energetically significant cooperative (π–π)₂/(π–π)₁/(π–π)₂ assemblies and fascinating (H₂O)₂₁ clusters.

Adipato bridged novel hexanuclear Cu(ii) and polymeric Co(ii) coordination compounds involving cooperative supramolecular assemblies and encapsulated guest water clusters in a square grid host: antiproliferative evaluation and theoretical studies

Novel adipato bridged Cu(ii) and Co(ii) complexes synthesized by considering cytotoxicity, apoptosis, ROS generation, molecular docking and pharmacophore features.