1,2,4-triazine derived binuclear lead(ii) complexes: synthesis, spectroscopic and structural investigations and application in organic light-emitting diodes (OLEDs).

Two novel binuclear complexes of Pb(ii) were synthesized by reacting a 3-(2-pyridyl)-5-(4-methoxyphenyl)-1,2,4-triazine (PMPT) ligand with different anionic co-ligands (1: bromide, 2: acetate and isothiocyanate) in a 1 : 1 molar ratio of PMPT ligands to lead(ii) salts. The complexes, [Pb(μ-PMPT)Br] (1) and [Pb(μ-PMPT)((μ-CHCOO)(NCS)] (2), were characterized using various physicochemical techniques such as CHN analysis, FT-IR spectroscopy, and H NMR spectroscopy. Additionally, their structures were determined using single-crystal X-ray diffraction.

The relationship between personality traits of cancer patients and their preferences when receiving bad news.

Objective: This study aimed to determine the relationship between the personality traits of cancer patients and their preferences when receiving bad news.

Methods: In this descriptive correlational study, 200 cancer patients who were selected by the continuous sampling method participated. Patients self-reportedly completed the demographic and medical information questionnaire, the Measure of Patients' Preference (MPP) scale, and the short form of the Eysenck Personality Inventory (EPI).

Effect of aromatherapy on cancer complications: A systematic review.

Purpose: The aim of this study was to determine the effect of aromatherapy on cancer complications.

Methods: In this systematic review, international (PubMed, Web of Science, Scopus, EMBASE and CENTRAL) and national databases (SID and Magiran) were searched from inception of the databases to April 31, 2019. JBI and Jadad scales were used to assess the quality of the studies included.

Coordination of a triazine ligand with Cu and Ag investigated by spectral, structural, theoretical and docking studies.

Two complexes of 5-phenyl-3-(pyridin-2-yl)-1,2,4-triazine (PPTA), namely (ethanol-κO)bis(nitrato-κO)[5-phenyl-3-(pyridin-2-yl-κN)-1,2,4-triazine-κN]copper(II), [Cu(NO)(CHN)(CHO)] or [Cu(NO)(PPTA)(EtOH)] (1), and bis[μ-5-phenyl-3-(pyridin-2-yl)-1,2,4-triazine]-κN:N,N;κN,N:N-bis[(nitrato-κO)silver(I)], [Ag(NO)(CHN)] or [Ag(NO)(μ-PPTA)] (2), were prepared and characterized by elemental analysis, FT-IR spectroscopy and single-crystal X-ray diffraction. The X-ray structure analysis of 1 revealed a copper complex with square-pyramdial geometry containing two O-donor nitrate ligands along with an N,N'-donor PPTA ligand and one O-donor ethanol ligand. In the binuclear structure of 2, formed by the bridging of two PPTA ligands, each Ag atom has an AgNO environment and square-planar geometry.

Spectral, structural and theoretical study of the effects of thiocyanato and dicyanamido ligands on the geometry of Pb complexes containing a triazinic ligand.

Two lead(II) complexes of 5,6-bis(furan-2-yl)-3-(pyridin-2-yl)-1,2,4-triazine (DFPT), namely one-dimensional (1D) catena-poly[[bis[5,6-bis(furan-2-yl)-3-(pyridin-2-yl-κN)-1,2,4-triazine-κN]lead(II)]-di-μ-thiocyanato-κN:S;κS:N], [Pb(NCS)(CHNO)], 1, and binuclear di-μ-dicyanamido-κN:N;κN:N-bis{[5,6-bis(furan-2-yl)-3-(pyridin-2-yl-κN)-1,2,4-triazine-κN](nitrato-κO,O')lead(II)}, [Pb(CN)(NO)(CHNO)], 2, as well as DFPT itself, were prepared and identified by elemental analysis, FT-IR, H NMR spectroscopy and single-crystal X-ray structural analyses. In the double-chain 1D coordination polymer of 1 and the binuclear structure of 2, the Pb atom has a hemidirected-PbNS and a rare holodirected-PbNO environment, respectively, with a distorted cubic geometry. All the coordination modes of dicyanamide ligands within lead complexes were studied using the Cambridge Structural Database (CSD) to compare them with the structures of 1 and 2.