We prove that the count of Maslov index 2 $J$-holomorphic discs passing through a generic point real Lagrangian submanifold in closed spherically monotone symplectic manifold must be even. As corollary, we exhibit genuine phenomenon terms involutions, namely Chekanov torus $\mathbb{T}_{\text{Chek}}$ $S^2\times S^2$, which is not Hamiltonian isotopic to Clifford $\mathbb{T}_{\text{Clif}}$, can s...

Nanoparticles of a new dinuclear silver(I) complex [Ag2(PPh3)2(μ-S-4nb-tsc)2(η1-S-4nb-tsc)2](NO3)2, where 4nb-tsc = 4-nitrobenzylidenethiosemicarbazone and PPh3 = triphenylphosphine, were prepared in an ultrasonic bath and characterized by FT-IR and SEM. The crystal structure of a suitable single crystal prepared by slow evaporation was determined by single crystal X-ray diffraction. The compou...

The title compound, [Fe(2)(C(15)H(12)N(2)S(3))(CO)(6)], was prepared as an aza-dithiol-atodiiron model for the active site of [FeFe]-hydrogenase. The Fe(2)S(2) core adopts a butterfly shape, with each metal having a pseudo square-pyramidal geometry. The N-substituted aza-dithiol-ate is μ(2)-κ(4)S,S':S,S'-coordinated to the Fe(CO)(3) moieties to form two fused six-membered rings with different c...

The title compound, [Fe(2)(C(16)H(14)N(2)S(3))(CO)(6)], was prepared as the biomimetic model for the active site of iron-only hydrogenase. The structure is similar to the diiron subsite of the iron-only hydrogenase active site, and contains a diiron-aza-dithiol-ate moiety in which a boat six-membered ring is fused with a chair six-membered ring. The substituted benzyl group attached to the brid...