scholarly journals IR SPECTRA OF THE REACTION PRODUCTS BETWEEN IRON VAPOR AND NITRIC OXIDE: A MODEL FOR THE CHEMISORPTION OF NITRIC OXIDE

1978 ◽  
Vol 7 (1) ◽  
pp. 83-86 ◽  
Author(s):  
Hiroshi Bandow ◽  
Takaharu Onishi ◽  
Kenzi Tamaru
Keyword(s):  
Nitric Oxide ◽  
Ir Spectra ◽  
Reaction Products ◽  
Iron Vapor

scholarly journals Gas-phase reaction products and yields of terpinolene with ozone and nitric oxide using a new derivatization agent

2015 ◽  
Vol 122 ◽  
pp. 513-520 ◽  
Author(s):  
Jason E. Ham ◽  
Stephen R. Jackson ◽  
Joel C. Harrison ◽  
J.R. Wells
Keyword(s):  
Nitric Oxide ◽  
Gas Phase ◽  
Phase Reaction ◽  
Reaction Products ◽  
Gas Phase Reaction

A Study of Isobutylene-Nitric Oxide Reaction Products

1964 ◽  
Vol 29 (7) ◽  
pp. 1937-1942 ◽  
Author(s):  
L. V. Phillips ◽  
D. M. Coyne
Keyword(s):  
Nitric Oxide ◽  
Reaction Products

Über die Reaktion von Phosphorylacetylenen mit Phosphanen / On the Reaction of Phosphoryl Acetylenes with Phosphanes

1976 ◽  
Vol 31 (2) ◽  
pp. 172-174 ◽  
Author(s):  
Ekkehard Fluck ◽  
Werner Kazenwadel
Keyword(s):  
Ir Spectra ◽  
Reaction Products

The reaction between dimethyl chloroacetylenephosphonate and tetramethyl acetylenediphosphonate with phosphanes is described. The starting materials and the reaction products are characterized by their NMR and IR spectra.

IR spectra of carbon monoxide and nitric oxide adsorbed on fullerene (C60)

1992 ◽  
Vol 96 (15) ◽  
pp. 6126-6128 ◽  
Author(s):  
M. Fastow ◽  
Y. Kozirovski ◽  
M. Folman ◽  
J. Heidberg
Keyword(s):  
Nitric Oxide ◽  
Carbon Monoxide ◽  
Ir Spectra ◽  
Fullerene C60

Effect of pollutant gases on chlorophyll a multilayer

1981 ◽  
Vol 59 (15) ◽  
pp. 2402-2411 ◽  
Author(s):  
Camille Chapados ◽  
Denis Germain ◽  
Roger M. Leblanc
Keyword(s):  
Ir Spectra ◽  
Atomic Absorption ◽  
Chlorophyll A ◽  
Direct Effect ◽  
Time Effect ◽  
Reaction Products ◽  
Pheophytin A ◽  
Chl A ◽  
End Products ◽  
Pollutant Gases

The aim of this paper is to examine the direct effect of polluting gases on chlorophyll a (chl a) multilayer arrays. The pollutants studied are CO, CO2, SO2, H2S, NO, and NO2. Electronic and infrared spectroscopies were used to monitor the time effect of the polluting gases on chl a molecules. TLC, atomic absorption, and electronic spectroscopies were used to characterise the reaction products. The results show that neither CO nor CO2 affect the chl a molecules in the multilayer arrays. Upon exposure to SO2, we notice many modifications on the electronic and ir spectra. All the evidence confirms that one of the reaction products is pheophytin a. A mechanism is presented to explain the reaction of SO2 with chl a. The effect of H2S on chl a is less pronounced than that of SO2, but the end products are the same. NO and NO2 have exactly the same effect on the chl a multilayer. The reaction is much more drastic than the reaction of chl a with either SO2 or H2S. There is opening of the cycle and nitration of the chl a molecule.

Fourier Transform Infrared Spectra of Calf Thymus DNA and its Reactions with the Anticancer Drug Cisplatin

1981 ◽  
Vol 35 (5) ◽  
pp. 461-465 ◽  
Author(s):  
Theophile Theophanides
Keyword(s):  
Fourier Transform ◽  
Ir Spectra ◽  
Anticancer Drug ◽  
Fourier Transform Infrared ◽  
Reaction Products ◽  
Sugar Phosphate ◽  
Platinum Drug ◽  
Absorption Region ◽  
Ribose Phosphate ◽  
Stretching Vibration

Fourier transform infrared (FT-IR) spectra of deoxyribonucleic acid (DNA) and its reaction products with the anticancer drug cis-Pt(NH3)2Cl2, cis-diamminodichloroplatinum (abbreviated cisplatin) in water and heavy water solutions or gels have been obtained and studied. The mid-IR spectra show considerable changes in the carbonyl (C=0) region and weaker, but significant perturbations in the sugar-phosphate absorption region (PO2−, OPC and COP). The carbonyl bands at 1710 and 1686 cm−1 of the control DNA in H2O and D2O, respectively, disappear and shift to lower frequencies in the spectra of cisplatin + DNA with a r = Pt/P = 0.2. Furthermore, the sugar-phosphate band at 1054 cm−1 of the C—O stretching vibration of the ribose-phosphate bond is reduced in intensity and slightly shifted to higher frequencies, indicating a reorientation of the phosphate group. In addition, the P—O stretching vibration frequency at 970 cm−1 is reduced in intensity on interaction with the drug. These changes depend to some extent on the water content in the control DNA and in the cisplatin + DNA complex. The water molecules in DNA in the presence of cisplatin reorganize themselves. The attack of the platinum drug at the N7 site of the guanine molecule in DNA exerts an effect on the DNA structure through a modification of the water average configuration and its stabilizing effect on the secondary structure.

Inhibition of neuronal nitric oxide synthase by 6-nitrocatecholamines, putative reaction products of nitric oxide with catecholamines under oxidative stress conditions

2001 ◽  
Vol 356 (1) ◽  
pp. 105-110 ◽  
Author(s):  
Anna PALUMBO ◽  
Giuseppe ASTARITA ◽  
Marco d'ISCHIA
Keyword(s):  
Nitric Oxide ◽  
Nitric Oxide Synthase ◽  
Neuronal Nitric Oxide Synthase ◽  
Enzyme Activation ◽  
H2o2 Production ◽  
Reaction Products ◽  
Competitive Inhibitors ◽  
Cytochrome C Reduction ◽  
Ic50 Values ◽  
Oxide Synthase

6-Nitrodopamine and 6-nitronoradrenaline (6-nitronorepinephrine), putative products of the nitric oxide (NO)-dependent nitration of dopamine and noradrenaline, are reported to be reversible, competitive inhibitors of neuronal nitric oxide synthase (nNOS) with Ki values of 45 and 52μM respectively. The nitrocatecholamines inhibited H2O2 production in the absence of l-arginine and tetrahydrobiopterin (BH4) (the IC50 values for 6-nitrodopamine and 6-nitronoradrenaline were 85 and 55μM respectively) but without affecting cytochrome c reduction. The apparent Ki values for nitrocatecholamine inhibition of enzyme activation by BH4 were 18μM for 6-nitrodopamine and 40μM for 6-nitronoradrenaline. Both nitrocatecholamines antagonized the dimerization of nNOS induced by BH4 and by l-arginine, the effect being reversed by BH4 (more than 10μM) and l-arginine (e.g. 100μM). Overall, these results suggest that nitrocatecholamines interfere with nNOS activity by binding to the enzyme in the proximity of the substrate and BH4-binding sites near the haem group.

Biochemical Reaction Products of Nitric Oxide as Quantitative Markers of Primary Pulmonary Hypertension

1998 ◽  
Vol 158 (3) ◽  
pp. 917-923 ◽  
Author(s):  
F. TAKAO KANEKO ◽  
ALEJANDRO C. ARROLIGA ◽  
RAED A. DWEIK ◽  
SUZY A. COMHAIR ◽  
DANIEL LASKOWSKI ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Pulmonary Hypertension ◽  
Primary Pulmonary Hypertension ◽  
Biochemical Reaction ◽  
Reaction Products
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