N-Benzyl-5-(dimethylamino)naphthalene-1-sulfonamide

Abstract

The structure of the title compound, C19H20N2O2S, displays inter­molecular N—H⋯O hydrogen bonding, which generates inversion dimers. There is no π–π stacking in the crystal structure. The dihedral angle between the phenyl ring and naphthalene ring system is 59.16 (11)°.

Experimental and Computational Studies on the Interaction of a Dansyl-Based Fluorescent Schiff Base Ligand with Cu2+ Ions and CuO NPs

“…Geometric parameters ( Tables S2 and S3 ) are within typical ranges observed for residues related to DsA [ 25 , 26 , 27 , 28 ] and 4-formyl-3-hydroxybenzoic acid [ 29 , 30 , 31 ]. Strong intramolecular H bonds ( Table S4 ) O(1)-H(1)···N(11) and O(41)-H(41)···N(51), as well as π-stacking interactions stabilize the configuration of these two molecules.…”

“…Details of the crystal data collection and structure refinement are also summarized in Table S1 . Crystals of DsA consist of crystallographically independent molecules, whose main geometric parameters ( Tables S2 and S3 ) are within the typical ranges observed for other dansyl derivatives [ 25 , 26 , 27 , 28 ]. Mutual intermolecular N(19)-H(19A)···O(21) #3 bonds allow connecting two contiguous molecules to form H-bonded dimers, as occurred for its derivative [H 4 L]Cl·0.92 H 2 O as well.…”

“…Mutual intermolecular N(19)-H(19A)···O(21) #3 bonds allow connecting two contiguous molecules to form H-bonded dimers, as occurred for its derivative [H 4 L]Cl·0.92 H 2 O as well. Sulfonamide oxygen atoms of DsA are additionally connected to other adjacent molecules through the amino group N(11)-H(11B)···O(21) #4 ( Table S6 ), as typically observed for dansyl [ 25 ] and tosyl [ 32 ] derivatives.…”

The crystal structure of 2-[5-(dimethylamino)naphthalene-1-sulfonamido]phenyl 5-(dimethylamino)naphthalene-1-sulfonate

“…Furthermore, dansyl fluorogenic sensors were prepared for recognition and detection of many targets such as cationic and anionic species (Cao et al, 2014;Jisha et al, 2009;Bhalla et al, 2007). Crystal structures of dansyl derivatives (Bhatt et al, 2011;Zhang et al, 2009) and metal complexes of calix[4]arene bearing two dansyl carboxamide units have been reported (Buie et al, 2008).…”

Fluorescent tags. dansyl amide (CH3)2N–С10Н6–SO2NH2: Reflection of the conformational properties of a free molecule in crystal structures

“…However, the crystal structures of some complicated organic and complex compounds have been known [4][5][6][7][8][9] whose composition contains dansyl amide as a substituent or a part of the ligand. In different crystals the -SO 2 NH-group of the dansyl amide molecule can take a different spatial position with respect to the naphthalene core plane [4,9], and moreover, a different mutual orientation of -(CH 3 ) 2 N and -SO 2 NH groups is possible [4,5,9].…”