Detail of "2217-07-4"

Reference

Structure of complexes and proton transition in ground and excited states in aniline-acid systems

Structure of complexes and proton transition in ground and excited states in aniline-acid systems. Mikheev, V. A.; Shraiber, V. M. (USSR). Zh. Prikl. Khim. (Leningrad), 57(3), 435-41 (Russian) 1984. CODEN: ZPKHAB. ISSN: 0044-4618. DOCUMENT TYPE: Journal CA Section: 68 (Phase Equilibriums, Chemical Equilibriums, and Solutions) Section cross-reference(s): 73 The IR and UV absorption spectra of aniline, N,N-dipropylaniline, and N,N-dioctylaniline complexes with CF3CO2H in CCl4, BuCl, dioxane, MeCN, BuOH, or H2O at various temps. and concn. range 10-4-10-1 M were detd. Luminescence excitation of PhNH2.HCl in alcs. was studied at 80-300 K. Heats of complexation were estd. 2217-07-4 and 3007-75-8 which are cas registry numbers of chemicals are mentioned. Proton phototransfer between cation and anion in alc. solns. of PhNH2.HCl involves solvate shell rearrangement. At low temps. (￡140 K), solvent structural relaxation times are greater than the lifetime of the excited state complex. .

Squaraine chemistry

Squaraine chemistry. On the anomalous mass spectra of bis[4-(dimethylamino)phenyl] squaraine and its derivatives. Law, Kock Yee; Bailey, F. Court; Bluett, Lynn J. (Xerox Corp., Webster, NY 14580, USA). Can. J. Chem., 64(8), 1607-19 (English) 1986. CODEN: CJCHAG. ISSN: 0008-4042. DOCUMENT TYPE: Journal CA Section: 24 (Alicyclic Compounds) Section cross-reference(s): 22 The electron impact mass spectra of bis(4-dialkylaminophenyl)squaraines (e.g., I; R = R1 = H; R = Et, R1 = H; R = H, R1 = MeO) (14 compds.) were studied and a method for their prepn. is reported. Ions of mass no. higher than the mol. ion, which are shown to be precursors of fragment ions of lower mass nos., are obsd. From the structure-property relationship, these ions are assigned to [M + CHR]+· and [M + H2]+· where CH2R is the alkyl group in the N,N-dialkylanilino moiety of squaraine. Evidence is provided that the formation of [M + CHR]+· and [M + H2]+· is the result of alkyl transfer and H transfer reactions within a squaraine aggregate rather than intermol. vapor phase reactions in the mass spectrometer. This mol. aggregate is later shown to be a trimer by anal.There are some commonly used reagents with their cas registry numbers 105810-39-7 and 2217-07-4 in this article. of metastable ion data and chem. ionization mass spectrometry. The fragmentation sequence of this trimeric species is elucidated with the assistance of metastable ions. Results show that the trimer may break down to monomeric and dimeric species upon electron impact; alternatively, the four-membered ring of the central squaraine in the trimer may cleave to generate two species of approx. equal mass no. These two species usually dominate the mass spectrum and further fragment into [M + CHR]+· and [M + H2]+·. Detailed fragmentation schemes for [M + CHR]+· and [M + H2]+· are proposed and discussed. .