The first organocopper tetrazole derivative: synthesis and characterization

2016 ◽  
Vol 45 (34) ◽  
pp. 13406-13414 ◽  
Author(s):  
Sergei V. Voitekhovich ◽  
Yuri V. Grigoriev ◽  
Alexander S. Lyakhov ◽  
Ludmila S. Ivashkevich ◽  
Oleg A. Ivashkevich
Keyword(s):  
Carbon Atom ◽  
Synthesis And Characterization ◽  
Tetrazole Derivative

1-(5-Amino-3-azapentyl)tetrazole undergoes deprotometallation at the heteroring carbon atom giving an organocopper(ii) tetrazole derivative in which the Cu–C bonds are stabilized by a rigid chelating framework.

Synthese und Charakterisierung der Spezies R–C7H7Cr(CO)3 mit R = CH3COCH2-, CH3CO(CH3)CH-, CH3COCHCH(CH3)2– / Synthesis and Characterization of the Species R-C7H7Cr(CO)3 with R = CH3COCH2-, CH3CO(CH3)CH - , CH3COCHCH(CH3)2–

1979 ◽  
Vol 34 (7) ◽  
pp. 918-920 ◽  
Author(s):  
Farhad Zahedi ◽  
Manfred L. Ziegler
Keyword(s):  
Carbon Atom ◽  
Nucleophilic Addition ◽  
Nmr Spectra ◽  
Synthesis And Characterization ◽  
Ethyl Group ◽  
H Nmr

Abstract The species R-C7H7Cr(CO)3 (R = -CH2COCH3 , -CH(CH3)COCH3 , -CH(CH)CH3)2COCH3) have been synthesized by reaction of [η7-C7H7Cr(CO)3][BF4] with suitable ketones in the presence of bases like OH- and F- , suggesting a nucleophilic addition of the enolate ion to the cycloheptatrienyl ligand. 1H NMR spectra revealed the CH3-CO-CH(CH3) group being bonded to the cycloheptatriene ligand via the a-carbon atom of the ethyl group

scholarly journals New water-soluble isoxazole-linked 1,3,4-oxadiazole derivative with delocalized positive charge

RSC Advances ◽  
2021 ◽  
Vol 11 (47) ◽  
pp. 29668-29674
Author(s):  
Urszula Bąchor ◽  
Ewa Drozd-Szczygieł ◽  
Remigiusz Bąchor ◽  
Lucjan Jerzykiewicz ◽  
Robert Wieczorek ◽  
...  
Keyword(s):  
Carbon Atom ◽  
Positive Charge ◽  
Water Soluble ◽  
Synthesis And Characterization

Herein we present a synthesis and characterization of a new water soluble isoxazole-linked 1,3,4-oxadiazole derivative owing the local positive charge at the carbon atom of oxadiazole moiety.

An atomic resolution study of a carbide phase in platinum

1992 ◽  
Vol 50 (1) ◽  
pp. 20-21
Author(s):  
M.J. Witcomb ◽  
M.A. O'Keefe ◽  
CJ. Echer ◽  
C. Nelson ◽  
J.H. Turner ◽  
...  
Keyword(s):  
Solid Solution ◽  
Carbon Atom ◽  
Carbide Phase ◽  
Structural Changes ◽  
Critical Role ◽  
Alloy System ◽  
Atomic Resolution ◽  
Excess Carbon ◽  
Interstitial Carbon ◽  
Resolution Study

Under normal circumstances, Pt dissolves only a very small amount of interstitial carbon in solid solution. Even so, an appropriate quench/age treatment leads to the formation of stable Pt2C {100} plate precipitates. Excess (quenched-in) vacancies play a critical role in the process by accommodating the volume and structural changes that accompany the transformation. This alloy system exhibits other interesting properties. Due to a large vacancy/carbon atom binding energy, Pt can absorb excess carbon at high temperatures in a carburizing atmosphere. In regions rich in carbon and vacancies, another carbide phase, Pt7C which undergoes an order-disorder reaction was formed. The present study of Pt carburized at 1160°C and aged at 515°C shows that other carbides in the PtxC series can be produced.

Synthesis and Characterization of the Three Dicyclopentapyrenes

1996 ◽  
Vol 61 (10) ◽  
pp. 3572-3572
Author(s):  
Lawrence T. Scott ◽  
Atena Necula
Keyword(s):  
Synthesis And Characterization

Synthesis and characterization of TiN / Ti / AISI 410 coatings

2018 ◽  
Vol 2 (1) ◽  
pp. 7
Author(s):  
S Chirino ◽  
Jaime Diaz ◽  
N Monteblanco ◽  
E Valderrama
Keyword(s):  
Synthesis And Characterization ◽  
Photoemission Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Columnar Grains ◽  
Tin Thin Films ◽  
Steel Aisi ◽  
Interacting Surfaces ◽  
Stainless Steel Aisi

The synthesis and characterization of Ti and TiN thin films of different thicknesses was carried out on a martensitic stainless steel AISI 410 substrate used for tool manufacturing. The mechanical parameters between the interacting surfaces such as thickness, adhesion and hardness were measured. By means of the scanning electron microscope (SEM) the superficial morphology of the Ti/TiN interface was observed, finding that the growth was of columnar grains and by means of EDAX the existence of titanium was verified.  Using X-ray diffraction (XRD) it was possible to observe the presence of residual stresses (~ -3.1 GPa) due to the different crystalline phases in the coating. Under X-ray photoemission spectroscopy (XPS) it was possible to observe the molecular chemical composition of the coating surface, being Ti-N, Ti-N-O and Ti-O the predominant ones.

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