TY - JOUR T1 - Raman Characterization of Phenyl-Derivatives: From Primary Amine to Diazonium Salts A1 - Betelu,S A1 - Tijunelyte,I A1 - Boubekeur Lecaque,L A1 - Ignatiadis,I A1 - Schnepf,Ac A1 - Guenin,E A1 - Bouchemal,N A1 - Felidj,N A1 - Rinnert,Emmanuel A1 - Lamy De La Chapelle,M AD - BRGM, Water Environment and Eco- Technology Division, F-45060 Orléans Cedex 02, France AD - University Paris 13, Sorbonne Paris Cité, CSPBAT laboratory, UMR 7244 CNRS, UFR SMBH, 74, Rue Marcel Cachin, 93017 Bobigny, France AD - University Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France AD - IFREMER, Brittany Center, Measurements, Detection and Sensors Laboratory, CS10070, 29280 Plouzané, France UR - https://archimer.ifremer.fr/doc/00391/50262/ DO - 10.21767/2472-1123.100021 KW - Phenyl-amines KW - Diazonium salts KW - Synthesis and characterization KW - Raman KW - DFT calculations N2 - The objective of the present work is to use Raman spectroscopy for characterizing, the fate of phenyl-derivatives, from phenyl-amines to aryl-diazonium derivatives (ADD). Four ADD were investigated: (i) benzene diazoniumtetrafluoroborate (DS), (ii) 4-decyl benzene diazoniumtetrafluoroborate (DS-C10H21), (iii) 4-carboxybenzene diazoniumtetrafluoroborate (DS-COOH) and (iv) 4-(aminoethyl) benzene diazoniumtetrafluoroborate (DS-(CH2)2NH2). Raman investigation of the above ADD confirmed the existence of an N≡N bond stretching in the range of 2285-2305 cm-1. Moreover, the strong band related to CH in plane-bending and C-N-stretching modes in the 1073-1080 cm-1 range, is a signature of phenyl derivatives stemming from ADD. Furthermore, we analyzed and discuss the H-N- (ring) symmetric stretching modes and the ring-N, as well as the benzene-ring vibrational modes, the C-H related vibrations and the functions in para-position carried by the aromatic ring. The effect of structural changes, the conformational rearrangements from amines to ADD and the influence of the substituent located in the para-position on Raman modes, were examined as well. Finally, Raman experiments supported by Density Functional Theory (DFT) modeling allowed us to determine the crystalline structure of DS-COOH. Y1 - 2017 PB - iMedPub Journals JF - Journal of Organic & Inorganic Chemistry SN - 2472-1123 VL - 3 IS - 1 SP - 1 EP - 10 ID - 50262 ER -