An organomercury enzyme activator as a versatile template for new organomercury(II) compounds encompassing homobimetallic (RHg/Hg) and heterobimetallic (RHg/Cd) compositions: Syntheses, photoluminescence and structures

Abstract

A series of pale yellow imine-functionalized acetyloxy(4-(arylideneamino)phenyl)mercury(II) compounds (2-7) were obtained by the reactions of acetyloxy(4-aminophenyl)mercury(II) (1) with arylaldehydes in equimolar ratios in absolute ethanol under reflux conditions. Organomercury compounds 2-5 and 7, when treated with 1,5-diphenylthiocarbazone (dptc) in chloroform, formed dark-red (4-((E)-arylideneamino)phenyl)(((Z)-((E)-phenyldiazenyl) (2-phenylhydrazono)methyl)thio)mercury compounds (8e12) in alkaline medium. The reaction of 7 with a slight excess of mercuric chloride in anhydrous methanol led to the formation of the bimetallic compound (2-[4-(acetyloxymercuryl) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT[ Construction of mono-and a bi-metallic organomercury/mercury and organomercury/cadmium compounds were accomplished from an enzyme activator via suitably designed imine-functionalized organomercury ligand. M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT

Synthesis and Structure of a Polymeric Homobimetallic Mercury Compound Constructed from (E)-Acetyloxy{4-[(pyridin-2-ylmethylene)amino]phenyl}mercury(II)

“…The overall coordination geometry at Hg(2) cannot easily be described by any classical shape, but is perhaps most closely associated with a distorted square pyramid where atom N(4') is at the apex. A similar asymmetric geometry for a bidentate acetate ligand and long linking Hg-N distance were observed in the polymeric chain structure of acetyloxy(4-aminophenyl)mercury(II) [8].…”

“…Compound 1 is a further example of the series of similar bimetallic complexes whose crystal structures were reported earlier (compounds LHgCl 2 .DMSO, LHgCl 2 .DMF and LCdCl 2 .DMF) [8]. In these complexes, chloride ligands were present instead of thiocyanate and either dimethylformamide (DMF) or dimethylsulfoxide, the solvents used for crystallization, had become coordinated to atom Hg(1) (atom Cd(1) in LCdCl 2 .DMF), which was thus five-coordinate.…”

“…Compound was prepared by reacting pyridine-2-carbaldehyde and acetyloxy(4-aminophenyl)mercury(II) in ethanol under reflux conditions [8]. Cryojet XL cooler.…”

“…Atom Hg(2) in 1 is five-coordinate, including three weaker long interactions, whereas in LHgCl 2 .DMSO, LHgCl 2 .DMF and LCdCl 2 .DMF, this atom is four-coordinate with two weak interactions to neighboring asymmetric units. Whereas 1 is a two-dimensional coordination polymer in which all linkages within the polymer involve only atom Hg(2), while LHgCl 2 .DMSO, LHgCl 2 .DMF and LCdCl 2 .DMF are one-dimensional polymers in which the connections involve a route through both Hgatoms (the Hg and Cd-atoms in LCdCl 2 .DMF [8]. One can speculate upon the cause of the different polymeric structure found for 1 and surmise that the steric bulk of the thiocyanate ligands, compared with the chloride ligands present in the other structures, might be a contributing factor.…”

“…As a part of an on-going investigation into the synthesis and structures of bimetallic mercury compounds, we now report the reaction of (E)-acetyloxy{4-[(pyridin-2-ylmethylene)amino]phenyl}mercury(II) [8] with Hg(SCN) 2 which provided a polymeric homobimetallic compound (2-{[4-…”