Dinuclear Nickel(II) Complex, Binucleating Ligand The asymmetric unit of crystal of the title compound, [Ni2(L)(C3H 3N2)j (L = 1,3-Bis(2hydroxy-4-methoxybenzylideneamino)propan-2-ol, C3H 3N 2 = pyrazolate) contains two inde­ pendent dinickel(II) complexes. In both molecules, the nickel(II) ions are bridged by the alkoxo group of the ligand and the N atoms of the pyrazolate group. Each nickel(II...

Let G be a connected claw-free graph on n vertices and G be its complement. Let μ(G) be the spectral radius of G. Denote by Nn−3,3 the graph consisting of Kn−3 and three disjoint pendent edges. In this note we prove that: (1) If μ(G) ≥ n − 4, then G is traceable unless G = Nn−3,3. (2) If μ(G) ≤ μ(Nn−3,3) and n ≥ 24, then G is traceable unless G = Nn−3,3. Our works are counterparts on claw-free ...

In the title compound, C(14)H(14)N(2)S(3), the thione S atom and methyl group are syn, as are the two thio-ether S atoms. The mol-ecule is twisted, the dihedral angles between the central (C(2)N(2)S(2)) residue and the pendent 2-thienyl and phenyl rings being 21.57 (6) and 77.54 (3)°, respectively. In the crystal, mol-ecules assemble into a three-dimensional architecture via C-H⋯π inter-actions...

Two bicyclic compounds containing Arg-Gly-Asp (RGD) motifs (RGDf and RGD) were synthesized by cyclizing the peptide sequence across the macrocyclic ring of DOTA via two non-adjacent carboxylate pendent arms. The Lu(3+) or Cu(2+) complexes of these compounds, c(DOTA-RGDf) and c(DOTA-RGD), showed a metal dependent affinity towards integrin α(v)β(3)in vitro and the (177)Lu(3+) or (64)Cu(2+) labell...