7553-56-2

Multiple oscillations observed in the rotational state population of I2(B) formed in the photodissociation of (I2)2

Philippoz, J.-M.,Monot, R.,Bergh, H. van den

, p. 288 - 291 (1990)

Several oscillations are observed in the rotational state population of I2B 3Π(Ou+) produced in the photodissociation (I2)2 + hν -> I2(Bυ',J') + I2(X).The initial excitation is above the dissociation limit of th

Variable dimensionality in 'hollow' hybrid tin iodide perovskites

Lightfoot, Philip,McNulty, Jason A.,Slawin, Alexandra M. Z.

, p. 15171 - 15174 (2020)

Two 'hollow' B-site deficient perovskites, (TzH)11(H3PO2)Sn6I23 and (TzH)3Sn2I7 (TzH+ = 1,2,4-triazolium, H3PO2 = hypohosphorous acid), have been prepared. (TzH)11(H3PO2)Sn6I23 is the first example of a 2D layered structure of this type. Leaving the same reaction mixture for an extended time also affords the 3D derivative (TzH)3Sn2I7.

Formation of molecular iodine from the two-photon dissociation of CI4 and CHI3: An experimental and computational study

Tweeten, Eric D.,Petro, Benjamin J.,Quandt, Robert W.

, p. 19 - 24 (2003)

The formation of electronically excited molecular iodine from the two-photon photodissociation of CI4 and CHI3 was investigated using dispersed fluorescence and ab initio calculations. Molecular iodine was formed in the D, D', and E

Cluster-induced photochemistry of CH3I at 248 nm

Fan, Y. B.,Donaldson, D. J.

, p. 189 - 196 (1992)

We have carried out a systematic study of the 248 nm excimer-laser photodissociation of small methyl iodide clusters in a free jet expansion.Ground electronic state I2 is formed from the photolysis of methyliodide dimers and detected via the laser induced fluorescence (LIF) excitation spectrum of the (B-X) transition.The internal energy of the I2 is approximately 2.5 kJ/mol and is the same for CH3I seeded in CO2, Ar, Xe, O2, and He, as well as for the neat expansion and deuterated sample.A room temperature flow cell experiment shows that the reaction channel I* + CH3I -> I2 + CH3I does not contribute to the measured I2 signal.The results strongly imply that a cluster-induced cooperative effect is responsible for the I2-producing chemistry.

Raffo, M.,Rossi, G.

, p. 278 - 280 (1912)

Vapor pressure over KI-CoI2 melts

Kritskaya,Burylev,Moisov,Kostenko

, p. 202 - 206 (2004)

The vapor pressure in the KI-CoI2 system is determined by isobaric boiling point measurements. Calculated vapor pressure isotherms of the KI-CoI2 system show negative deviations from linearity. The vapor composition over pure CoIsub

Chemical generation of atomic iodine for the chemical oxygen-iodine laser. II. Experimental results

?palek, Otomar,Jirásek, Vít,Kodymová, Jarmila,Jakubec, Ivo,Hager, Gordon D.

, p. 147 - 157 (2002)

A new method for the chemical generation of atomic iodine intended for use in a chemical oxygen-iodine laser (COIL) was investigated experimentally. The method is based on the fast reaction of hydrogen iodide with chemically produced chlorine atoms. Effects of the initial ratio of reactants and their mixing in a flow of nitrogen were investigated experimentally and interpreted by means of a computational model for the reaction system. The yield of iodine atoms in the nitrogen flow reached 70-100% under optimum experimental conditions. Gain was observed in preliminary experiments on the chemical generation of atomic iodine in a flow of singlet oxygen.

-

Williams,Woods

, p. 1408 (1937)

-

On the chemical and electrochemical one-electron reduction of peroxynitrous acid

Kurz, Christophe,Zeng, Xiuqiong,Hannemann, Stefan,Kissner, Reinhard,Koppenol, Willem H.

, p. 965 - 969 (2005)

Peroxynitrous acid was reduced by cathodic linear sweep voltammetry at a gold electrode and by iodide at pH 3.2 and 5.6. The cathodic reduction wave was identified by measuring its decay in time, which was the same as observed by optical spectroscopy. The iodide oxidation was followed by optical measurement of the triiodide formation. Both reductions show one-electron stoichiometry, with the product nαα = 0.23 ± 0.04 from the electrochemical experiments, in which α is the transfer coefficient and na the number of electrons transferred, and an diiodine yield of ca. 0.5 equiv per equivalent of peroxynitrous acid. The voltammetric reduction was irreversible up to scan rates of 80 V s-1. Both reductions were pH independent in the range studied. The voltammetric reduction is most likely an irreversible elemental reaction followed by a chemical decay that cannot be observed directly. Because of the pH independence, we conclude that both reductions have a common short-lived intermediate, namely [HOONO]-. We estimate the electrode potential of the likely ONOOH/ONOOH- couple to be larger than 1 V. The commonly used electrode potential E°(ONOOH, H +/NO2, H2O) does not describe the chemistry of peroxynitrous acid.

Schulek

, p. 161 - 169 (1925)

Stas, J. S.

, p. 419 - 419 (1867)

Stamm, H.,Wiebusch, K.-D.

, p. 42 - 43 (1944)

Jackson, H.

, p. 339 (1883)

Straaten,Aten

, p. 3798 (1954)

Caley, E. R.

, p. 3240 - 3243 (1932)

Muir, M. M. P.

, p. 656 - 662 (1909)

Oxidative hydrolysis in water vapor-air phase of CsI radioaerosols produced by CsI sublimation from metallic surface

Kulyukhin,Mikheev,Kamenskaya,Rumer,Konovalova,Novichenko

, p. 63 - 66 (2004)

Behavior of CsI radioaerosols produced by CsI sublimation from a platinum support in argon, air, and water vapor-air mixture was studied. During 10-12 min of the vaporization at 900-1570 K, CsI radioaerosols undergo oxidative hydrolysis with atmospheric oxygen and water vapor to form CsOH aerosols and I2. The cesium-to-iodine ratio determined in various fractions shows that oxidation of CsI in argon is minimal and is caused by the presence of oxygen and water traces. Oxidative hydrolysis of CsI strongly increases with increasing water vapor content in the vapor-gas flow. The degree of oxidative hydrolysis of CsI in the gas flow depends not only on the content of water vapor and oxygen but also on the initial CsI/O2 molar ratio.

New d0 transition metal iodates: Synthesis, structure, and characterization of BaTi(IO3)6, LaTiO(IO3) 5, Ba2VO2(IO3)4· (IO3), K2MoO2(IO3)4, and BaMoO2(IO3)4·H2O

Ok, Kang Min,Halasyamani, P. Shiv

, p. 2263 - 2271 (2005)

Five new d0 transition metal iodates, BaTi(IO3) 6, LaTiO(IO3)5, Ba2VO 2(IO3)4·(IO3), K 2MoO2(IO3)4, and BaMoO 2(IO3)4· H2O, have been synthesized by hydrothermal methods using Ba(OH)2·8H 2O, La2O3, K2CO3, TiO2, V2O5, MoO3, and HIO 3 as reagents. The structures of these compounds were determined by single-crystal X-ray diffraction. All of the reported materials have zero-dimensional or pseudo-one-dimensional crystal structures composed of MO6 (M = Ti4+ , V5+, or Mo6+) octahedra connected to IO3 polyhedra. Infrared and Raman spectroscopy, thermogravimetric analysis, and UV-vis diffuse reflectance spectroscopy are also presented. Crystal data: BaTi(IO3)6, trigonal, space group R-3 (No. 148), with a = b = 11.4711(10) A, c = 11.1465(17) A, V = 1270.2(2) A3, and Z = 3; LaTiO(IO 3)5, monoclinic, space group P21/n (No. 14), with a = 7.4798(10) A, b = 18.065(2) A, c = 10.4843(14) A, β = 91.742(2)°, V = 1416.0(3) A3, and Z = 4; Ba 2VO2(IO3)4·(IO3), monoclinic, space group P21/c (No. 14), with a = 7.5012(9) A, b = 33.032(4) A, c = 7.2150(9) A, β = 116.612(2)°, V = 1598.3(3) A3, and Z = 4; K2MoO2(IO 3)4, monoclinic, space group C2/c (No. 15), with a = 12.959(2) A, b = 6.0793(9) A, c = 17.748(3) A, β = 102.410(4)°, V = 1365.5(4) A3, and Z = 4; BaMoO 2(IO3)4·H2O, monoclinic, space group P21/n (No. 14), with a = 13.3368(17) A, b = 5.6846(7) A, c = 18.405(2) A, β = 103.636(2)°, V = 1356.0(3) A3, and Z = 4.

A redox-triggered structural rearrangement in an iodate-templated polyoxotungstate cluster cage

Long, De-Liang,Yan, Jun,Ruiz De La Oliva, Andreu,Busche, Christoph,Miras, Haralampos N.,Errington, R. John,Cronin, Leroy

, p. 9731 - 9733 (2013)

The new tungstatoiodate, α-[H5W18O 59(IO3)]6-, containing IVO 3- within a {W18O54} metal oxide framework has been prepared and shown by X-ray crystallography and mass spectrometry to be derived from the fully oxidised [H3W 18O56(IO6)]6- by two-electron reduction accompanied by a redox-triggered structural rearrangement where three I-O covalent bonds are broken.

Henderson, A.,McCulloch, W. P.

, (1939)

Martin,Noyes

, p. 4183 (1953)

Abel, E.

, (1950)

0'Brien, D. E.,Bowen, J. R.

, p. 4767 - 4769 (1969)

-

Luebbe,Willard

, p. 761,764 (1959)

-

ABSORPTION AND LUMINESCENCE OF PHOTOCHROMIC CdI//2: CuI.

Ronda, C. R.,Zwaal, E.,Folkersma, H. F.,Lenselink, A.,Haas, C.

, p. 80 - 91 (1988)

The irradiation with ultraviolet light of CdI//2 containing 1-5 mole% CuI induces new absorption bands in the visible part of the spectrum. The absorption spectra of uncolored, optically colored, and thermally bleached CdI//2:CuI are presented and discussed. The optical coloration is due to the photoneutralization of Cu** plus ions in CdI//2, and the thermal bleaching is due to thermal ionization of Cu atoms. During the coloration process small microcrystals of metallic Cu are formed in the CdI//2 single crystals. Uncolored CdI//2:CuI shows luminescence similar to CdI//2. Optically colored CdI//2:CuI does not show luminescence, due to the presence of optically induced luminescence killing centers.

Control of Biohazards: A High Performance Energetic Polycyclized Iodine-Containing Biocide

Zhao, Gang,He, Chunlin,Zhou, Wenfeng,Hooper, Joseph P.,Imler, Gregory H.,Parrish, Damon A.,Shreeve, Jean'Ne M.

, p. 8673 - 8680 (2018/07/29)

Biohazards and chemical hazards as well as radioactive hazards have always been a threat to human health. The search for solutions to these problems is an ongoing worldwide effort. In order to control biohazards by chemical methods, a synthetically useful fused tricyclic iodine-rich compound, 2,6-diiodo-3,5-dinitro-4,9-dihydrodipyrazolo [1,5-a:5′,1′-d][1,3,5]triazine (5), with good detonation performance was synthesized, characterized, and its properties determined. This compound which acts as an agent defeat weapon has been shown to destroy certain microorganisms effectively by releasing iodine after undergoing decomposition or combustion. The small iodine residues remaining will not be deleterious to human life after 1 month.