Category: 6443-90-9

Powell, D. B. published the artcileInfrared spectra and the stabilities of chelate metal-ethylenediamine complexes, Formula: C5H5ClIN, the publication is Journal of the Chemical Society (1961), 1112-14, database is CAplus.

cf. CA 54, 18078i. The suggestion that type A spectra are confined to complexes in which the ethylenediamine adapts the gauche configuration, while in the type B spectra the ligand has the cis configuration, has been abandoned because of x-ray studies. The spectra of PtCl₄^— salts of the ethylenediamine complex cations of Pt(II), Rh(III), Co(III), Pd(II), Cr(III), Hg(II), Cu(II), Ni(II), Co(II), Zn(II), and Cd(II) were studied. Frequencies of 2 bands assigned to N-H rocking and a band assigned to metal-N stretching decreased in the same order as the decrease in log K_av. The N-H rocking bands occur, 800-600 cm.^-1, while the metal-N stretching bands are at 585-478 cm.^-1.

Journal of the Chemical Society published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C5H5ClIN, Formula: C5H5ClIN.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Popov, Alexander I. published the artcileThe chemistry of halogens and of polyhalides. XI. Molecular complexes of pyridine, 2-picoline, and 2,6-lutidine with iodine and iodine halides, Recommanded Product: Pyridine Iodochloride complex, the publication is Journal of the American Chemical Society (1957), 4622-5, database is CAplus.

cf. C.A. 51, 7931a. Crystalline addition compounds of 2-picoline, 2,6-lutidine, and pyridine were prepared with ICI and IBr. The dissociation constants of these 6 compounds and of the 3 mol. complexes, amine-I₂, were determined spectrophotometrically in CCl₄ solutions The order of stability for the halogen series was ICI > IBr > I₂, in agreement with the acidic strength of the halogens. The order of stability for the amine series was 2-picoline > pyridine > 2,6-lutidine. The low stability of 2,6-lutidine complexes is ascribed to steric effects. The absorption spectra of acetonitrile solutions of the 6 addition compounds had maximum at either the 227 mμ peak of ICl₂^–, or the 256 mμ peak of IBr₂^–, indicating an ionic dissociation in this polar solvent, as opposed to mol. dissociation in nonpolar CCl₄.

Journal of the American Chemical Society published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C5H5ClIN, Recommanded Product: Pyridine Iodochloride complex.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Hassel, O. published the artcileStructure of the 1:1 compound pyridine-iodomonochloride, Formula: C5H5ClIN, the publication is Acta Chemica Scandinavica (1956), 696-8, database is CAplus.

cf. C.A. 48, 12115f; 50, 12592f. Pyridine-iodomonochloride, yellow monoclinic needles, m. 132°, space group P2₁/c, has parameters: a 4.25, b 12.29, c 14.07 A., β 94.4°, and bond distances I-Cl 2.51, N-Cl 2.26 A. Experiments show that the I, Cl, and N atoms are at least very nearly on a straight line, and suggest that the C atom opposite the N atom is also on this line, but do not appear to strengthen the suggestion that the “outer” halogen atom attains a strong neg. charge. Previous structure studies of ether-halogen addition compounds are compared with these on N compounds The strong interaction between the O or N atom and the nearest halogen atom is evident from the short separation between these atoms, this effect being greatest in the case of N. It is probable that electrons associated with the atoms forming the O-halogen or N-halogen bond are partially promoted to d orbitals.

Acta Chemica Scandinavica published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C5H5ClIN, Formula: C5H5ClIN.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Yagi, Yoshiharu published the artcileChemistry of halogens and of polyhalides. XXVI. Infrared absorption spectra of iodine bromide and its complexes, Recommanded Product: Pyridine Iodochloride complex, the publication is Journal of Physical Chemistry (1967), 71(8), 2439-44, database is CAplus.

The influence of complexation on the frequency of the I-Br fundamental stretching vibration in iodine bromide complexes has been investigated. The frequency and the intensity of this band are strongly influenced by the strength of the iodine bromide-electron donor interaction. The position of the IBr band varies from 261 cm.-1 in CCl4 solutions to 205 cm.-1 for the pyridine-IBr complex dissolved in benzene. In solid complexes the IBr band is split into a doublet. The changes in frequency are analyzed to obtain changes in force constants Some attempt is made to interpret these results. 31 references.

Journal of Physical Chemistry published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C39H35N5O8, Recommanded Product: Pyridine Iodochloride complex.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Yagi, Yoshiharu published the artcileNew polyhalide complex ions, Recommanded Product: Pyridine Iodochloride complex, the publication is Inorganic and Nuclear Chemistry Letters (1965), 1(1), 21-4, database is CAplus.

Polyhalide complexes of the type A.HICl₂.ICl (A = organic base) were prepared by dissolving a A.HICl₂ complex in 1,2-dichloroethane, adding a 4-5 fold excess of ICl, and diluting the resulting solution with CCl₄. The compounds prepared and their m.ps. are: 2,2′-bp.HICl₂.ICl (65-7°) (bp = bipyridine); 4,4′-Me₃-2,2′-bp.HICl₂.ICl (57-9°); 2,2′-bq.HICl₂.ICl (139-40°) (bq = biquinoline); 1,10-phen.HICl₂.ICl (96.5-7.5°) (phen = phenanthroline); 2,9-Me₂-1,10-phen.HICl₂.ICl (97-8°); 4,7-Me_2-1,10-phen.HICl₂.ICl (114-15°); py.HICl₂.ICl (85-6°); 2,6-lu.HICl₂.ICl (lu = lutidine); and Me₄N.ICl₂.ICl. The last 2 were red-orange oils which, on cooling, solidified to glasses; the others precipitated as orange microcrystalline powders. All are quite stable at room temperature They decomposed slowly by atm. moisture. They are soluble in many organic solvents (except CCl₄), dissociating to A.HICl₂ and ICl. They lose a mole of ICl on heating to ∼100°. Ir data seems to indicate the I₂Cl₃^– ion.

Inorganic and Nuclear Chemistry Letters published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C26H26N4O7, Recommanded Product: Pyridine Iodochloride complex.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Sychev, O. F. published the artcileQuantum chemical calculation of charge transfer and quadrupole interaction constants in complexes, Computed Properties of 6443-90-9, the publication is Izvestiya Akademii Nauk SSSR, Seriya Fizicheskaya (1975), 39(12), 2675-83, database is CAplus.

The electronic structure of SbCl5.L, SnCl4.L2 (L = MeCN and ClCN), and ICl.Py complexes was calculated by using the CNDO/2 method. From the AO population, the quadrupole interaction constants, charge transfer, and charge distribution were estimated A considerable increase in the electron d. on the Cl atoms of the acceptor mols. was observed in all cases. The charge of the central atom of the acceptor was almost constant in the SbCl3.L and ICl.Py complexes but increased in SnCl4.L2. This was explained by an inaccuracy in the Sn calculation parameters. The calculated and exptl. results of the quadrupole interaction constants were in good agreement. The interaction between I and N (and Cl) atoms in the ICl.py complexes is predominantly caused by the σ orbitals.

Izvestiya Akademii Nauk SSSR, Seriya Fizicheskaya published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C5H7NO, Computed Properties of 6443-90-9.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Yarwood, John published the artcileInfrared studies on charge-transfer complexes. I. Comparison of the vibrational intensities of pyridine with those of pyridine-iodine chloride, Related Products of iodides-buliding-blocks, the publication is Transactions of the Faraday Society (1969), 65(4), 934-44, database is CAplus.

Integrated ir intensity measurements are reported for the vibrational fundamental bands of pyridine and of the pyridine-ICl charge-transfer complex in CHCl3 and benzene solutions An attempt has been made to interpret the large intensity changes which occur on complexation in terms of the charge-transfer model proposed by Mulliken. Intensity perturbations arise in addition to those expected for the “weak” complex approximation and several interesting anomalies in the intensity data are discussed.

Transactions of the Faraday Society published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C11H10ClNO, Related Products of iodides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Yarwood, Jack published the artcileVibrational band shape and intensity studies on molecular motions and interactions in condensed phases. Part 3. Effects of complexation on the molecular dynamics of pyridine, Quality Control of 6443-90-9, the publication is Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics (1976), 72(5), 967-74, database is CAplus.

The changes in ir band width of pyridine on complexation with ICl are consistent with a mechanism involving a large increase in the total correlation time, due to removal of a large part of the correlation function GR(t), and a subsequent broadening of the band due to increased vibrational relaxation. This relaxation is partly controlled by dipole-dipole interaction and partly by transition dipole-transition dipole interaction. The vibrational relaxation mechanism operates for free pyridine and on complexation produces a pattern of band widths dependent on the intensities, normal coordinates, and symmetry properties of the normal modes.

Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C11H10ClNO, Quality Control of 6443-90-9.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Yarwood, Jack published the artcileSpectroscopic studies on intermolecular complexes. II. Far infrared intensities and NMR spectra of pyridine bases with iodine monochloride, Recommanded Product: Pyridine Iodochloride complex, the publication is Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (1970), 26(11), 2099-12, database is CAplus.

Low-frequency IR and NMR spectra for complexes of ICl with a series of substituted pyridines have been obtained in an attempt to study the factors which lead to a variation in donor ability when Me group substitution is made at different positions in the ring. The presence of even one α-Me group causes a significant decrease in the ν(N-I) (intermol.) band frequency and intensity (and in the kDI force constant) relative to those found in the absence of α-Me groups. On the other hand the ν(I-Cl) band intensity varies very little on going from one base to another while the NMR spectra show that electronic rearrangement within the base mols. can be correlated, at least to some extent, with their pKa values.

Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C6H20Cl2N4, Recommanded Product: Pyridine Iodochloride complex.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Sheka, I. A. published the artcileThe dielectric properties of the iodine halide complexes with some organic compounds, Synthetic Route of 6443-90-9, the publication is Zhurnal Fizicheskoi Khimii (1956), 109-16, database is CAplus.

The dielec. properties of ICl systems with dioxane, pyridine, and quinoline, and of IBr with dioxane, CHCl₃, and CCl₄ as solvents were investigated. The maximum deviations of the dielec. constants and polarization from the calculated values corresponds to the formation of definite complex compounds in solution In the ICl-C₅H₅N and ICl-quinoline systems in CHCl₃, solution, the maximum deviations of ΔAP and Δε are very sharp, and their values exceed by many times the deviations in the systems of IBr and ICl with dioxane and CCl₄. A comparison of the values of the polarization deviations and the instability constants of C₄H₈O₂.ICl and C₄H₈O₂. IBr shows that the systems formed in ICI and IBr by dioxane must be considered irrational, while ICl forms with pyridine and quinoline rational systems. With ICl quinoline forms 2 compounds: C₉H₇N.ICl and C₉H₇N.2ICl; the second is more stable in CHCl₄ solution than is the analogous compound with pyridine.

Zhurnal Fizicheskoi Khimii published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C5H5NO3S, Synthetic Route of 6443-90-9.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com