A bis-urea-functionalized pillar[5]arene has been synthesized and shown to form [2]pseudorotaxanes spontaneously with linear alkyl dicarboxylates in highly polar solvent DMSO, in which the hydrogen bonding interactions between the bis-urea hydrogens and dicarboxylate oxygens play an important role in stabilizing the novel [2]pseudorotaxanes alongside C-Hπ interactions.

The synthesis of new Schiff base-like ligands with extended π-system and their iron complexes is described. Some of the iron(ii) complexes with N-heterocycles as axial ligands show spin crossover behaviour. The influence of the extended aromatic system on cooperative interactions is investigated by single crystal X-ray structure analysis, X-ray powder diffraction, and magnetic measurements. A c...

We introduce the concepts of degree inertia, diG(H), and compression, dcG(H), a finitely generated subgroup H given group G. For case direct products free-abelian free groups, we compute compression give an upper bound for inertia. Imposing some technical assumptions to supremum involved in definition notion called restricted diG′(H), and, again Zm×Fn, provide explicit formula relating it inert...

In this letter, we propose to investigate Λ hypernuclei for the A 15 mass region by using pionic decay. The Project aims to determine precisely the binding energies of light hypernuclei, investigate production of exotic hypernuclei, and study impurity nuclear physics and the medium effect of baryons. ≤ These investigations will fully utilize the unique parameters (high intensity, small emittanc...

In this paper, we define invariant tensor product and study invariant tensor products associated with discrete series representations. Let G(V1) × G(V2) be a pair of classical groups diagonally embedded in G(V1 ⊕ V2). Suppose that dimV1 < dimV2. Let π be a discrete series representation of G(V1 ⊕ V2). We prove that the functor π⊗G(V1) maps unitary representations of G(V1) to unitary representat...

By using 1-methyl-4-(carbomethoxy)pyridinium (MCMP+) as counterions, two iodoargentate hybrids, 1D [MCMP][AgI2] (1) and 3D [MCMP][Ag3I4] (2) have been synthesized and they exhibit rare electron transfer photochromism with a fast response rate, a wide response range and a long-lived charge-separated state in iodometallate systems. Noteworthily, the marked differences in the structure and photoch...

We compute the photon asymmetry for near threshold parity violating (PV) pion photoproduction through sub-leading order. We find a potentially significant contribution from new PV low-energy constants not considered previously. We observe that a measurement of this asymmetry may help clarify the theoretical intepretation of backward angle PV electron-proton scattering, provided that the PV πNN ...

We study CP asymmetries in B → hπ decays, where the hadronic states h = ρρ,KKπ, ππKK, etc., and h = ππ, KK, 2(ππ), etc., are taken on the resonances ηc and χc0, respectively. The relatively large ηc and χc0 decay widths, of about 10−15 MeV, provide the necessary absorptive phase in the interference between the resonance (going through b→ ccd) and the background (through b→ uud) contributions to...

From the recent measurement of parity nonconservation (PNC) in the Cs atom we have extracted the constant of the nuclear spin dependent electron-nucleon PNC interaction, κ = 0.44(7); the anapole moment constant, κa = 0.38(7); the strength of the PNC proton-nucleus potential, gp = 7 ± 1.4 (exp.) ± 1.5 (theor.); the π-meson-nucleon interaction constant, fπ ≡ hπ = [10 ± 2.5 (exp.) ± 3.5 (theor.)] ...

We study singularity formation in nonlinear differential equations of order m 6 2, y(m) = A(x−1, y). We assume A is analytic at (0, 0) and ∂yA(0, 0) = λ 6= 0 (say, λ = (−1)m). If m = 1 we assume A(0, ·) is meromorphic and nonlinear. If m = 2, we assume A(0, ·) is analytic except for isolated singularities, and also that ∫ ∞ s0 |Φ(s)|−1/2d|s| < ∞ along some path avoiding the zeros and singularit...