In the title compound, C(4)H(10)N(+)·C(12)H(9)O(2) (-)·C(12)H(10)O(2), the pyrrolidine ring adopts an envelope conformation and the dihedral angle between the planes of the two naphthalene ring systems is 8.34 (10)°. The crystal structure is stabilized by O-H⋯O and N-H⋯O hydrogen bonds.

Quaternary ammonium salt namely 4-methyl-4-[2-(naphthalen-2-yl)-2-oxoethyl] morpholin-4-ium iodide (WSMPM) was synthesized and characterized. High molar absorptivity at 347 nm (1910 L･mol-1･cm-1) good solubility in distilled water (10-2 M) allows WSMPM to be used as an effective photoinitiator also water-soluble systems. Photopolymerization of acrylamide monomer with (10-3 a tertiary amine (N-m...

We characterize a highly unusual, charged NH-O hydrogen bond formed within esters of 8-(dimethylamino)naphthalen-1-ol in which an ammonium ion serves as an intramolecular hydrogen bond donor to spatially proximate ester ether oxygen atoms. Infrared spectroscopic analysis of the ester carbonyl frequencies demonstrates significant blue-shifting when ether hydrogen bonding is possible, in stark co...

In the title compound, [Cu(C(24)H(27)N(4)O(3))]ClO(4), the Cu(II) atom has a distorted square-planar coordination geometry and is surrounded by an N(3)O donor set composed of a secondary amine N, a primary amine H, an imino N and a naphthalen-2-olate O atom. An intra-molecular N-H⋯O hydrogen bond occurs. In the crystal, mol-ecules are held together by inter-molecular N-H⋯O hydrogen bonds, leadi...

The asymmetric unit of the title compound, 2C18H12O4·C2H6OS·2H2O, consists of four crystallographically independent mol-ecules of 5-(naphthalen-1-yl)isophthalic acid, two dimethyl sulfoxide and four water mol-ecules. The dihedral angles formed by the the planes of the aromatic fragments of the organic mol-ecules range from 57.4 (1) to 59.1 (1)°. In the crystal, multiple O-H⋯O hydrogen bonds lin...