Catalysts were characterized via XRD, Raman spectra, CO-IR, H2-TPR, N2O- titration, NH3-TPD and XPS. The much more excellent performance for furfural hydrogenation of AC-CZ was due to its higher dispersion of copper species, superior copper surface area, better surface acidity distribution and...
The synthesized compound gave the same GC/MS and GC/FT-IR spectra as those of the natural product.The other monoterpene lactone was likewise elucidated from the unidentified Rhizoglyphus mite to be 4-(4-methyl-3-pentenyl)-2(5H)-furanone (2) and named as α,β-acariolide; it was also...
The chemical structure of PPHTCF dye in the hydrazine form could be confirmed by IR, 1H NMR, 13C NMR, and MS analyses. Download: Download high-res image (295KB) Download: Download full-size image Scheme 1. Preparation of PPHTCF dye. 3.2. UV–Visible spectra and solvatochromism The 1 ...
vMealnoypcmhaelcnonte[s1a1n–d1t4h]e.ir synthetic derivative analogues have been found to Our onginohiibnigt thienstyenrtehsetsisinof tnhitericsoexaidrech(NfOo)ranndopvreosltaagnlaanldginess(iPcGa),gwehnicths ahreapsroledducttsooftthhee niintrvicestigation of naturally ocotchxueidrmerisany...
Reactivity of Some 1(N)(para㏑2)㏄henacyl]–4(N)(para㏑1)﹑henyl]2,4‐triazolium﹎ethylides by UV￢IS, IR, and NMR Spectra and Molecular Modeling ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals...
M KOH. Complexes 1 and 2 have efficient activity towards electrochemical water oxidation in the 0.1?M KOH. The simulated spectra of the two complexes 1 and 2 are characterized by excited states with ligand-to-ligand charge-transfer (LLCT) and ligand-to-metal charge-transfer (LMCT) character....
The two synthetized substances were characterized by their UV.-, IR.-, NMR.- and mass spectra, and identified with two products obtained by selenium dehydrogenation of anhydrohirundigenin.doi:10.1002/hlca.19690520606K. StöckelW. Stöcklin...
The two synthetized substances were characterized by their UV.-, IR.-, NMR.- and mass spectra, and identified with two products obtained by selenium dehydrogenation of anhydrohirundigenin.doi:10.1002/hlca.19690520606K. StöckelW. Stöcklin...
IR, magnetic susceptibility and single crystal X-ray diffraction data. Complexes 1 and 2 crystallize in orthorhombhic system with space group 'Pbca' and 'Pbcn', respectively. In complex 1, nickel centre is coordinated through one hydrazine nitrogen atom, one carbonyl oxygen of two units of ...
The position of preferential protonation of nitrogen in piperazine ring in hydrochloride salts was determined by means of IR spectra, 13C CP/MAS NMR spectra and 15N CP/MAS NMR spectra. These results were supported by ab initio/DFT calculations of partial charges and proton affinities. Physico-...