Comments on the paper: Crystal growth and comparison of vibrational and thermal properties of semi-organic nonlinear optical materials [PDF]
, 2015 Gunasekaran et al (Pramana J. Phys. 75 683-690 (2010)) report to have grown the nonlinear optical crystals urea thiourea mercuric chloride (UTHC) and urea thiourea mercuric sulphate (UTHS). We argue that UTHC and UTHS are dubious crystals and are not what the authors propose.
arxiv +1 more source
Characterization studies on Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II) complexes with new ligand`s derived from thiourea [PDF]
مجلة التربية والعلم, 2011 complexes of the type [M(L1)Cl2] and [M(L2)Cl2] (M=Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II); L1=(2,11-dithioxo-1,3,10,12-tetra azacyclo octa deca-6,15-diene-4,9,13,18-tetraone), L2=(2,9-dithioxo-1,3,8,10-tetra aza cyclo tetra decane-4,7,11,14 ...
Saad Dawood, Thana Yousif
doaj +1 more source
Unveiling the photophysics of thiourea from CASPT2/CASSCF potential energy surfaces and singlet/triplet excited state molecular dynamics simulations [PDF]
, 2019 This work describes the decay mechanism of photoexcited thiourea, both in gas phase and in solution, from the information inferred from the topography of the excited and ground state potential energy surfaces and mixed singlet/triplet quantum classical molecular dynamics simulations.
arxiv +1 more source
Probing Excitons in Ultrathin PbS Nanoplatelets with Enhanced Near-Infrared Emission [PDF]
, 2020 Strongly quantum-confined 2D colloidal PbS nanoplatelets (NPLs) are highly interesting materials for near-infrared optoelectronic applications. Here, we use ultrafast transient optical absorption spectroscopy to study the characteristics and dynamics of photoexcited excitons in ultrathin PbS NPLs with a cubic (rock-salt) structure.
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ACS Omega, 2019 The corrosion inhibition ability of 1-phenyl-2-thiourea (PTU) and 1,3-diisopropyl-2-thiourea (ITU) for mild steel in 1.0 M hydrochloric was studied by using the potentiodynamic polarization (PDP) curves, electrochemical impedance spectroscopy (EIS ...
Dinh Quy Huong, Tran Duong, P. Nam
semanticscholar +1 more source
DFT/TD-DFT study on spectroscopic properties of zinc(II), nickel(II), and palladium(II) metal complexes with a thiourea derivative [PDF]
Journal of the Serbian Chemical Society, 2016 The geometries, electronic structures, and spectral properties of three metal complexes Zn(C10H12N3OS)2 (1), Ni(C10H12N3OS)2 (2), and Pd(C10H12N3OS)2 (3) with N-(2-pyridinyl)morpholine-4-carbothioamide as a ligand are investigated by means of ...
Wang Xin +5 more
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Photoelectrochemical and photocatalytic properties of N + S co-doped TiO2 nanotube array films under visible light irradiation [PDF]
Materials Chemistry and Physics, Volume 129, Issues 1-2, 15
September 2011, Pages 553-557, 2011 In this paper, we report on the co-doping nitrogen and sulfur has been achieved in the TiO2 nanotube array films by treatment with thiourea and calcination under vacuum at 500 {\deg}C for 3 h. The samples were characterized by scanning electron microscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and ultraviolet-visible diffuse ...
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The Amino Thiourea-Catalyzed Asymmetric Nucleophilic Reactions
CHIMIA, 2007 Bifunctional amino thiourea-catalyzed asymmetric additions of several nucleophiles into electron-deficient unsaturated compounds such as nitroolefins, ?,?-unsaturated imides, imines, and azodicarboxylates are described.
Yoshiji Takemoto, Hideto Miyabe
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Synthesis and Evaluation of Thiol-Conjugated Poloxamer and Its Pharmaceutical Applications
Pharmaceutics, 2021 The current study was designed to convert the poloxamer (PLX) into thiolated poloxamer (TPLX), followed by its physicochemical, biocompatibilities studies, and applications as a pharmaceutical excipient in the development of tacrolimus (TCM)-containing ...
Muhammad Zaman +13 more
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Candidate carriers and synthetic spectra of the 21- and 30-mu protoplanetary nebular bands [PDF]
, 2011 Computational chemistry is used here to determine the vibrational line spectrum of several candidate molecules. It is shown that the thiourea functional group, associated with various carbonaceous structures (mainly compact and linear aromatic clusters), is able to mimic the 21-$\mu$m band emitted by a number of proto-planetary nebulae. The combination
arxiv +1 more source