In the title adduct, C15H10N4·2C10H10N2, the pyrimidine ring is nearly co-planar with the heteroatomic perimidine ring, as indicated dihedral angle between their mean planes of 3.21 (11)°. The di-aminona-phthalene mol-ecules are slightly twisted [dihedral angles = 4.2 (2) and 3.0 (2)°] because of the steric encumbrance of NH2 groups. The perimidine and di-aminona-phthalene mol-ecules are linked...

The first paradigm of halide-controlled interconversion between two- and three-coordinate copper(i) complexes, [Cu(L(Ph))](ClO(4)) (1?ClO(4)) and [Cu(L(Ph))I] (2), where L(Ph) = 1,3-bis-(3,5-dimethyl-pyrazol-1-ylmethyl)-2-phenyl-2,3-dihydro-1H-perimidine, was presented, which can result in reversible fluorescence changes.

1H-Perimidine (PMD) and 1H-perimidine-2-thiol (SPMD) were developed as inhibitors for reinforcing steel in a simulated concrete pore (SCP) solution. Electrochemical measurements, contact angle experiments, scanning electron microscopy (SEM) quantum chemical calculations used to investigate the corrosion performance adsorption mechanisms. The experimental results showed that owing structure of S...

The mol-ecule of the title perimidine derivative, C(18)H(12)N(2)O(3), is essentially planar, the dihedral angle between the benzene and perimidine rings being 3.25 (5)°. The hy-droxy and meth-oxy groups lie in the plane of the benzene ring to which they are bound [O-C-C-C = 179.96 (11)° and C-O-C-C = -177.96 (12)°]. An intra-molecular O-H⋯N inter-action generates an S(6) ring motif. In the crys...

In the structure of the title salt C(12)H(11)N(2)S(+)·I(-), the methyl-sulfanyl group of the cation is nearly coplanar with the perimidine rings, as indicated by the C-S-C-N torsion angles of 2.9 (5) and -177.2 (3)°, respectively. The (S)C-N bond lengths in the heterocyclic ring are approximately equal [1.325 (5) and 1.326 (6) Å] suggesting a degree of delocalization. In the crystal, cations an...

In this paper, we report the crystal structure of 2-[2-(diphenylphosphoryl)phenyl]-1H-perimidine (L1) obtained from ring closure reaction 1,8-diaminonaphthalene and 2-(diphenylphosphino)benzaldehyde, followed by dehydrogenation with sodium metabisulfite (Na2S2O5). L1 was characterised using 1H, 13C & 31P NMR, FT-IR X-ray single analyses.

In the present study, 2-(p-tolyl)-2,3-dihydro-1H-perimidine (TDHP) is synthesized from 1,8-naphthalenediamine and 4-methylbenzaldehyde by embedding a one-carbon unit between nitrogen followed ring closure using green chemistry approach. 1H NMR 13C spectral techniques were used to validate structure of TDHP. The perimidine TDHP studied density functional theory (DFT) provide valuable insights in...

The title compound, C(13)H(14)N(2), was obtained from reaction of diaminona-phthalene with acetone. In both independent mol-ecules in the asymmetric unit, the tricyclic perimidine consists of a planar (r.m.s. deviations = 0.0125 and 0.0181 Å) naphthalene ring system and an envelope conformation C(4)N(2) ringwith the NCN group hinged with respect to the naph-thalene backbone by 36.9 (2) and 41.3...