Bis(vinylenedithio)tetrathiafulvalene analogues of BEDT-TTF

This review aims to give an overview of the current status of our research on the synthesis of π-electron donor bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF, ET) analogues prepared from 1,8-diketones via a ring forming reaction. The new synthesized π-electron donors have vinyl moieties producing extended π-electron delocalization over the substituent phenyl rings at the peripheries

5, 6-Diphenylthieno[2, 3-D][1, 3]-Dithiole-2-Thione

Scopu

Intramolecular interactions in ethyl bis-(2,4-dinitrophenyl)acetate

The crystal structure of ethyl bis(2,4-dinitrophenyl)acetate, determined by room temperature X-ray diffraction, shows that this crowded molecule contains two short intramolecular interactions between nitro oxygen atoms and electron deficient carbon atoms. One mimics an early stage of the nucleophilic addition to a carbonyl group (O ... C, 2.730 Angstrom), and the other mimics an early stage of a Michael reaction (O ... C, 2.854 Angstrom). Crystal data: C16H12N4O10, M-r = 420.29, a = 10.079(1), b = 11.139(1), c = 16.162(1) Angstrom, beta = 91.319(7)degrees, monoclinic, P2(1)/c, Z = 4

Electrochromic properties of poly(diphenyldithieno[3,2-b; 2 ',3 '-d]thiophene)

A conducting polymer of diphenyldithieno[3,2-b;2',3'-d]thiophene (DPhDTT) was synthesized via potentiodynamic method in dichloromethane (DCM)/acetonitrile (AN) (1:9(v/v))-NaClO4/LiClO4 (0.1:0.1 M) solvent-electrolyte couple. Characterizations of the resulting homopolymer were performed by cyclic voltarnmetry (CV), Fourier transform infrared (FTIR) and UV-Vis spectroscopy. Moreover, the spectroelectrochemical and electrochromic properties of the homopolymer films were investigated. Consequently, P(DPhDTT)/PEDOT device was constructed and their characteristics were examined in detail. A potential range of 0.0-2.0 V was found to be suitable for operating the P(DPhDTT)/PEDOT device between yellow and blue colors. The device reveals good open circuit memory and stability

Relationship between nursing students' levels of internet addiction, loneliness, and life satisfaction

Purpose This study examined nursing students' levels of Internet addiction, loneliness, and satisfaction with life. Design and Methods This descriptive, cross-sectional study was conducted in included university involving 160 nursing students who completed an information form and the Internet addiction, UCLA Loneliness, and Satisfaction with Life Scales. Findings No significant correlation was found between students' Internet addiction, loneliness, and life satisfaction (P > .05). However, a significant positive correlation between loneliness and life satisfaction was observed (P < .05). Practice Implications Measures to raise students' awareness of Internet addiction and social activities to enhance communication skills and life satisfaction should be planned

COST: Cognitive State Test, a brief screening battery for Alzheimer disease in illiterate and literate patients

Background: The aim was to develop a brief screening battery, Cognitive State Test (COST), for detecting the presence of dementia in both illiterate and literate patients and to assess its validity and reliability