Engineering paper-based visible light-responsive Sn-self doped domed SnO nanotubes for ultrasensitive photoelectrochemical sensor.

Exploring novel photoactive materials with high photoelectric conversion efficiency plays a crucial role in enhancing the analytical performance of paper-based photoelectrochemical (PEC) biosensor. SnO, which possesses higher photostability and electron mobility, can be regarded as a promising photoactive material. Herein, paper-based one dimensional (1D) domed SnO nanotubes (NTs) have been developed with the template-consumption strategy.

A new three-dimensional cobalt(II) coordination polymer with a 4-connected CdSO4-like topology.

The title cobalt(II) coordination polymer, poly[[diaquacobalt(II)]-mu4-3,3'-(p-phenylene)diacrylato], [Co(C12H8O4)(H2O)2]n, was obtained by reaction of Co(NO3)(2).6H2O and 3,3'-(p-phenylene)diacrylic acid (H2L) under hydrothermal conditions. Each Co(II) cation sits on a centre of inversion and is hexacoordinated by six O-atom donors in an octahedral geometry.

Dichlorido(dipyrido[3,2-a:2',3'-c]phenazine)manganese(II).

The complete mol-ecule of the title compound, [MnCl(2)(C(18)H(10)N(4))(2)], is generated by crystallographic twofold symmetry with the Mn atom lying on the rotation axis. The Mn coordination geometry is a distorted cis-MnCl(2)N(4) octa-hedron, arising from two N,N'-bidentate dipyrido[3,2-a:2',3'-c]phenazine (DPPZ) ligands and two chloride ions. In the crystal structure, neighbouring mononuclear units pack together through π-π contacts between the DPPZ rings [shortest centroid-centroid distance = 3.