Effects of 3d transition metal impurities and vacancy defects on electronic and magnetic properties of pentagonal PdS: competition between exchange splitting and crystal fields.

In this paper, we first investigate the electronic properties of the two-dimensional structure of dichalcogenide PdS. These properties strongly depend on the crystal field splitting which can change by atomic vacancies (S and Pd vacancies). The main purpose of the present paper is to create remarkable magnetic properties in the system by adding 3d transition metal atoms where the presence of Mn, Cr, and Fe creates the exchange interaction in the system as well as change in the crystal field.

The Role of Peer Support Group in Subjective Well-Being of Wives of War Veterans with Post-Traumatic Stress Disorder.

This study aimed to investigate the effect of peer support group on subjective well-being (SWB) of wives of war veterans with post-traumatic stress disorder (PTSD). Selected participants were randomly assigned into intervention and control groups (n = 40 for each group). The intervention group was divided into four subgroups, with each participating in 8 weekly based 1.

The effect of peer support groups on family adaptation from the perspective of wives of war veterans with posttraumatic stress disorder.

Objective: The aim of this study was to examine the effect of peer group support on family adaptation of wives of war veterans suffering from post-traumatic stress disorder (PTSD).

Design And Sample: In this randomized controlled trial, 80 wives of war veterans with PTSD were incorporated, and selected participants were randomly assigned into intervention and control groups (n = 40 per group). The intervention group was divided into four subgroups, with each participating in eight weekly based 1.

Donor- and/or acceptor-substituted expanded radialenes: theory, synthesis, and properties.

The synthesis of donor- (D) and/or acceptor (A)-expanded [4]radialenes has been developed on the basis of readily available dibromoolefin (7), tetraethynylethene (10 and 20), and vinyl triflate (12) building blocks. The successful formation of D/A radialenes relies especially on (1) effective use of a series alkynyl protecting groups, (2) Sonogashira cross-coupling reactions, and (3) the development of ring closing reactions to form the desired macrocyclic products. The expanded [4]radialene products have been investigated by spectroscopic (UV-vis absorption and emission) and quantum chemical computational methods (density functional theory and time dependent DFT).

Synthesis and derivatization of expanded [n]radialenes (n=3, 4).

Versatile, iterative synthetic protocols to form expanded [n]radialenes have been developed (n=3 and 4), which allow for a variety of groups to be placed around the periphery of the macrocyclic framework. The successful use of the Sonogashira cross-coupling reaction to complete the final ring closure demonstrates the ability of this reaction to tolerate significant ring strain while producing moderate to excellent product yields. The resulting radialenes show good stability under normal laboratory conditions in spite of their strained, cyclic structures.

Radiaannulenes: synthesis, electrochemistry, and solid-state structure.

Two new carbon-rich macrocycles (radiaannulenes) have been synthesized, and they possess an unsaturated carbon framework that is intermediate between that of linearly-conjugated dehydrobenzannulenes and cross-conjugated expanded radialenes.