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Article ; Online: Structure, Z′ = 2 Crystal Packing Features of 3-(2-Chlorobenzylidene)-5-( p -tolyl)furan-2(3 H )-one

Vyacheslav S. Grinev / Oksana A. Mayorova / Tatyana V. Anis’kova / Alexandra S. Tikhomolova / Alevtina Yu. Yegorova

Molecules, Vol 26, Iss 2137, p

2021 Volume 2137

Abstract: 3-(2-Chlorobenzylidene)-5-( p -tolyl)furan-2(3 H )-one ( 1 ), C 18 H 13 ClO 2 , crystallizes with Z ...

Abstract	3-(2-Chlorobenzylidene)-5-( p -tolyl)furan-2(3 H )-one ( 1 ), C 18 H 13 ClO 2 , crystallizes with Z = 8 and Z′ = 2, and the structure at 100 K has orthorhombic ( Pna 2 1 ) symmetry. Each kind of molecule takes part in π–π stacking interactions to form infinite chains parallel to the c axis. We believe that the existence of two forms can be explained by the probable rotation around a single C–C bond. The quantum chemical modeling reveals that these molecules are almost equivalent energetically, and they can be described as the two most stable conformers (rotamers) with a minor rotational barrier of about 0.67 kcal/mol.
Keywords	crystal structure ; crystallographically independent forms ; rotamers ; quantum chemical modeling ; rotational barrier ; 3-arylidene-5-arylfuran2(3 H )-one ; Organic chemistry ; QD241-441
Language	English
Publishing date	2021-04-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Adsorption studies on the treatment of battery wastewater by purified carbon nanotubes (P-CNTs) and polyethylene glycol carbon nanotubes (PEG-CNTs).

Hamzat, W Abidemi / Abdulkareem, A Saka / Bankole, M Temitope / Tijani, J Oladejo / Kovo, A Sanni / Abubakre, O Kamaldeen

Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering

2019 Volume 54, Issue 9, Page(s) 827–839

Abstract: ... to give purified carbon nanotubes (P-CNTs) and polyethylene glycol carbon nanotubes (PEG-CNTs ... respectively. The as-synthesized CNTs, P-CNTs and PEG-CNTs were characterized by high-resolution ... Brunauer Emmett Teller (BET). The adsorption behaviour P-CNTs and PEG-CNTs to remove specifically Cr and Zn ...

Abstract	Fe-Ni/kaolin catalyst was used for the production of carbon nanotubes (CNTs) via catalytic chemical vapour deposition followed by acid purification treatment and functionalization with polyethylene glycol to give purified carbon nanotubes (P-CNTs) and polyethylene glycol carbon nanotubes (PEG-CNTs), respectively. The as-synthesized CNTs, P-CNTs and PEG-CNTs were characterized by high-resolution transmission electron microscopy (HRTEM), high-resolution scanning electron microscopy (HRSEM), Fourier transform infrared and Brunauer Emmett Teller (BET). The adsorption behaviour P-CNTs and PEG-CNTs to remove specifically Cr and Zn from battery wastewater were examined by the batch adsorption process as a function of different contact time, adsorbent dosage and temperature. The HRSEM/HRTEM/BET analysis confirmed that both nano-adsorbents were tube-like in nature, high porosity and crystalline, with PEG-CNTs possessing high surface area (970.81 m
MeSH term(s)	Adsorption ; Kinetics ; Metals, Heavy/chemistry ; Metals, Heavy/isolation & purification ; Nanotubes, Carbon/chemistry ; Polyethylene Glycols/chemistry ; Porosity ; Thermodynamics ; Waste Disposal, Fluid/methods ; Water Pollutants, Chemical/chemistry ; Water Pollutants, Chemical/isolation & purification ; Water Purification/methods
Chemical Substances	Metals, Heavy ; Nanotubes, Carbon ; Water Pollutants, Chemical ; Polyethylene Glycols (3WJQ0SDW1A)
Language	English
Publishing date	2019-04-09
Publishing country	England
Document type	Journal Article
ZDB-ID	196584-0
ISSN	1532-4117 ; 0360-1226 ; 1077-1204 ; 1093-4529
ISSN (online)	1532-4117
ISSN	0360-1226 ; 1077-1204 ; 1093-4529
DOI	10.1080/10934529.2019.1596701
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Article: [(3-Nitro-1H-1,2,4-triazol-1-yl)-NNO-azoxy]furazans: energetic materials containing an N(O)N–N fragment [Erratum: July 2021, Vol.11(42), p.26228]

Gulyaev, Dmitry A. / Klenov, Michael S. / Churakov, Aleksandr M. / Strelenko, Yurii A. / Fedyanin, Ivan V. / Lempert, David B. / Kosareva, Ekaterina K. / Kon'kova, Tatiana S. / Matyushin, Yurii N. / Tartakovsky, Vladimir A.

RSC advances. 2021 July 07, v. 11, no. 39

2021

Abstract: The strategy for the synthesis of substituted [(3-nitro-1H-1,2,4-triazol-1-yl)-NNO-azoxy]furazans 4–7, in which the distal nitrogen of the azoxy group is bonded to the nitrogen atom of the azole ring, includes, firstly, the reaction of 1-amino-3-nitro-1H- ...

Abstract	The strategy for the synthesis of substituted [(3-nitro-1H-1,2,4-triazol-1-yl)-NNO-azoxy]furazans 4–7, in which the distal nitrogen of the azoxy group is bonded to the nitrogen atom of the azole ring, includes, firstly, the reaction of 1-amino-3-nitro-1H-1,2,4-triazole with 2,2,2-trifluoro-N-(4-nitrosofurazan-3-yl)acetamide in the presence of dibromisocyanuric acid followed by removing of the trifluoroacetyl protecting group to afford aminofurazan (4). Transformation of the amino group in the latter made it possible to synthesize the corresponding nitro (5), azo (6), and methylene dinitramine (7) substituted furazans. The compounds synthesized are thermally stable (decomposition onset temperatures 147–228 °C), exhibit acceptable densities (1.77–1.80 g cm⁻³) and optimal oxygen balance (the oxidizer excess coefficients α = 0.42–0.71). Their standard enthalpies of formation (576–747 kcal kg⁻¹) were determined experimentally by combustion calorimetry and these compounds have been estimated as potential components of solid composite propellants. In terms of the specific impulse level, model solid composite propellant formulations based on nitro and methylene dinitramine substituted furazans 5 and 7 outperform similar formulations based on CL-20 by 1–4 s, and formulations based on HMX and RDX by 5–8 s.
Keywords	calorimetry ; combustion ; dinitramine ; enthalpy ; nitrogen ; oxidants ; oxygen ; thermal stability
Language	English
Dates of publication	2021-0707
Size	p. 24013-24021.
Publishing place	The Royal Society of Chemistry
Document type	Article
ISSN	2046-2069
DOI	10.1039/d1ra03919a
Database	NAL-Catalogue (AGRICOLA)

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Article: Adsorption studies on the treatment of battery wastewater by purified carbon nanotubes (P-CNTs) and polyethylene glycol carbon nanotubes (PEG-CNTs)

Hamzat, W. Abidemi / Abdulkareem, A. Saka / Bankole, M. Temitope / Tijani, J. Oladejo / Kovo, A. Sanni / Abubakre, O. Kamaldeen

Journal of environmental science and health. 2019 July 29, v. 54, no. 9

2019

Abstract	Fe–Ni/kaolin catalyst was used for the production of carbon nanotubes (CNTs) via catalytic chemical vapour deposition followed by acid purification treatment and functionalization with polyethylene glycol to give purified carbon nanotubes (P-CNTs) and polyethylene glycol carbon nanotubes (PEG-CNTs), respectively. The as-synthesized CNTs, P-CNTs and PEG-CNTs were characterized by high-resolution transmission electron microscopy (HRTEM), high-resolution scanning electron microscopy (HRSEM), Fourier transform infrared and Brunauer Emmett Teller (BET). The adsorption behaviour P-CNTs and PEG-CNTs to remove specifically Cr and Zn from battery wastewater were examined by the batch adsorption process as a function of different contact time, adsorbent dosage and temperature. The HRSEM/HRTEM/BET analysis confirmed that both nano-adsorbents were tube-like in nature, high porosity and crystalline, with PEG-CNTs possessing high surface area (970.81 m2/g) than P-CNTs (781.88 m2/g). The optimum contact time and adsorbent dosage to remove Cr and Zn by P-CNTs and PEG-CNTs were 90 and 50 min and 0.3 g, respectively. Under the applied conditions, PEG-CNTs exhibited high adsorption capacity than P-CNTs for the selected heavy metals. The adsorption equilibrium data were better fitted to the Freundlich model while the kinetic data conformed to the pseudo-second-order model. Thermodynamic studies demonstrated the feasibility and endothermic nature of the system. This study demonstrated that both nano-adsorbents purify battery wastewater and with better performance by PEG-CNTs.
Keywords	Fourier transform infrared spectroscopy ; adsorbents ; adsorption ; batteries ; carbon nanotubes ; catalysts ; catalytic activity ; chromium ; endothermy ; heavy metals ; kaolin ; models ; polyethylene glycol ; porosity ; scanning electron microscopy ; sorption isotherms ; surface area ; temperature ; thermodynamics ; transmission electron microscopy ; vapors ; wastewater ; zinc
Language	English
Dates of publication	2019-0729
Size	p. 827-839.
Publishing place	Taylor & Francis
Document type	Article
ZDB-ID	196584-0
ISSN	1532-4117 ; 0360-1226 ; 1077-1204 ; 1093-4529
ISSN (online)	1532-4117
ISSN	0360-1226 ; 1077-1204 ; 1093-4529
DOI	10.1080/10934529.2019.1596701
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Sensitivity of P-Channel MOSFET to X- and Gamma-Ray Irradiation

Zoran Rajović Gvozden Ilić Milojko Kovačević Olivera Ciraj-Bjelac / Milić Pejović

International Journal of Photoenergy, Vol

2013 Volume 2013

Keywords	Physical and theoretical chemistry ; QD450-801 ; Chemistry ; QD1-999 ; Science ; Q ; DOAJ:Chemistry (General) ; DOAJ:Chemistry
Language	English
Publishing date	2013-01-01T00:00:00Z
Publisher	Hindawi Publishing Corporation
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Identification of Key Structural Characteristics of Schisandra chinensis Lignans Involved in P-Glycoprotein Inhibition

Slanina, JirÌiÌ / AdaÌmkovaÌ Lenka / CÌarneckaÌ Martina / Humpa Otakar / PaÌchnikovaÌ Gabriela / PorubovaÌ KoubiÌkovaÌ Ludmila / SÌmejkal Karel / SlaninovaÌ Iva

Journal of natural products. 2014 Oct. 24, v. 77, no. 10

2014

Abstract: ... lignans essential for P-glycoprotein inhibition. Altogether 15 structurally related lignans isolated ... of enantiomers. P-Glycoprotein inhibition was quantified using a doxorubicin accumulation assay in human ... promyelotic leukemia HL60/MDR cells overexpressing P-glycoprotein. A preliminary quantitative structureâ ...

Abstract	The aim of the present study was to determine the structural requirements for dibenzocyclooctadiene lignans essential for P-glycoprotein inhibition. Altogether 15 structurally related lignans isolated from Schisandra chinensis or prepared by modification of their backbone were investigated, including three pairs of enantiomers. P-Glycoprotein inhibition was quantified using a doxorubicin accumulation assay in human promyelotic leukemia HL60/MDR cells overexpressing P-glycoprotein. A preliminary quantitative structureâactivity relationship analysis revealed three main structural features involved in P-glycoprotein inhibition: a 1,2,3-trimethoxy moiety, a 6-acyloxy group, and the absence of a 7-hydroxy group. The most effective inhibitors, (â)-gomisin N (1) and (+)-deoxyschizandrin [(+)-2], were selected for further evaluation of their effects. Both these lignans restored the cytotoxic effect of doxorubicin in HL60/MDR cells and when combined with a subtoxic concentration of this compound increased the proportion of G2/M cells significantly, which is a usual response to treatment with this anticancer drug.
Keywords	cytotoxicity ; doxorubicin ; enantiomers ; humans ; leukemia ; lignans ; P-glycoproteins ; quantitative structure-activity relationships ; Schisandra chinensis
Language	English
Dates of publication	2014-1024
Size	p. 2255-2263.
Publishing place	American Chemical Society and American Society of Pharmacognosy
Document type	Article
ZDB-ID	304325-3
ISSN	1520-6025 ; 0163-3864
ISSN (online)	1520-6025
ISSN	0163-3864
DOI	10.1021%2Fnp500521v
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Article: [Lipid peroxidation and cytochrome P-450-dependent metabolism of xenobiotics in patients with coronary heart disease and multiple organ failure].

Nepomniashchikh, V A / Lomivorotov, V V / Deriagin, M N / Lomivorotov, V N / Kniaz'kova, L G / Efimov, A A

Anesteziologiia i reanimatologiia

2009 , Issue 2, Page(s) 52–56

Abstract: The aim of the investigation was to study oxidative stress and hepatic monooxygenase function (HMF) in coronary heart disease (CHD) patients with multiple organ dysfunction (MOD) after myocardial revascularization. Twenty-seven CHD patients with signs of ...

Abstract	The aim of the investigation was to study oxidative stress and hepatic monooxygenase function (HMF) in coronary heart disease (CHD) patients with multiple organ dysfunction (MOD) after myocardial revascularization. Twenty-seven CHD patients with signs of MOD and 38 patients with an uncomplicated postoperative period were examined. The intensity of MOD was rated by the SOFA scale; oxidative stress was estimated from the values of malondialdehyde, conjugate trienes, ceruplasmin, and catalase, and HMF was evaluated from antipyrine pharmacokinetic data. On postoperative day 1, the study group showed significant signs of MOD, as well as activated lipid peroxidation (LPO) and a 1.5-fold reduction in HMF. The control group displayed an insignificant HMF suppression under less marked oxidative stress. On days 3-4 after surgery, the total MOD index was noticeably lowered. Both groups exhibited a high LPO rate and enhanced HMF. On days 10-12 postoperatively, the severity of MOD corresponded to the previous period. There was a decrease in LPO activity in both groups. HMF was found to substantially reduce in the study group and to be in line with the baseline values in the control one. Correlation analysis revealed direct and inverse relationships of the indices of MOD with LPO rates and HMF. Therefore, MOD in patients with CHD is attended by increased oxidative stress and leads to a more significant HMF reduction as compared with those with an uncomplicated postoperative period. At the same time, LPO activation is one of the cardinal causes of HMF suppression. Reduced HMF may enhance the sensitivity of CHD patients to drug therapy.
MeSH term(s)	Cytochromes/metabolism ; Humans ; Lipid Peroxidation ; Liver Function Tests ; Microsomes, Liver/enzymology ; Microsomes, Liver/metabolism ; Middle Aged ; Multiple Organ Failure/enzymology ; Multiple Organ Failure/etiology ; Multiple Organ Failure/metabolism ; Myocardial Ischemia/enzymology ; Myocardial Ischemia/metabolism ; Myocardial Ischemia/surgery ; Myocardial Revascularization/methods ; Oxidative Stress ; Postoperative Complications/enzymology ; Postoperative Complications/etiology ; Postoperative Complications/metabolism ; Severity of Illness Index ; Xenobiotics/metabolism ; Xenobiotics/pharmacokinetics
Chemical Substances	Cytochromes ; Xenobiotics ; cytochrome P420 (9035-49-8)
Language	Russian
Publishing date	2009-03
Publishing country	Russia (Federation)
Document type	English Abstract ; Journal Article
ZDB-ID	754946-5
ISSN	0201-7563
ISSN	0201-7563
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Zs.B 1954: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular ab Jg. 2022: Lesesaal (EG)
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Article: Sindrom "bradikardiia-ukorochennyĭ interval P-Q".

Oskol'kova, M K / Kupriianova, O O / Seniakovich, N B

Pediatriia

1986 , Issue 6, Page(s) 17–20

Title translation	Bradycardia-short PQ interval syndrome.
MeSH term(s)	Adolescent ; Atrioventricular Node/physiopathology ; Bradycardia/diagnosis ; Child ; Electrocardiography ; Female ; Humans ; Male ; Pre-Excitation Syndromes/diagnosis ; Sinoatrial Node/physiopathology
Language	Russian
Publishing date	1986-06
Publishing country	Russia (Federation)
Document type	English Abstract ; Journal Article
ZDB-ID	123442-0
ISSN	1990-2182 ; 0031-403X
ISSN (online)	1990-2182
ISSN	0031-403X
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Zs.MO 380: Show issues

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Article: 20-letie Muzeia istorui meditsiny im. P. I. Stradynia.

Lebed'kova, M S / Viksna, A A

Sovetskoe zdravookhranenie

1977 , Issue 12, Page(s) 83–84

Title translation	20th anniversary of the P. I. Stradyn' History of Medicine Museum.
MeSH term(s)	History of Medicine ; History, 20th Century ; Latvia ; Museums/history
Language	Russian
Publishing date	1977-11-18
Publishing country	Russia (Federation)
Document type	Historical Article ; Journal Article
ZDB-ID	128566-x
ISSN	0038-5239
ISSN	0038-5239
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Article: Stareishii uchenik i sotrudnik I. P. Pavlova--G. V. Fol'bort; k 70-letiiu so dnia rozhdeniia i 45-letiiu nauchnoi, pedagogicheskoi I obshchestvennoi deiatel'nosti.

PRIKHOD'KOVA, E K / PUTILIN, N I

Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova

1955 Volume 5, Issue 4, Page(s) 595–600

Title translation	G.V. Fol'bort, scientist of long standing and collaborator of I. P. Pavlov; 70th anniversary of his birth and 45 years of his scientific pedagogical, and social work.
MeSH term(s)	Anniversaries and Special Events ; History, 19th Century ; History, 20th Century ; Posture ; Social Work
Language	Russian
Publishing date	1955-07
Publishing country	Russia (Federation)
Document type	Biography ; Historical Article ; Journal Article
ZDB-ID	414800-9
ISSN	0044-4677
ISSN	0044-4677
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