The aromatic diamine 4-aminopyridine was used for the synthesis of a series supramolecular metal–organic sulfate salts. obtained compounds with formula (C5H7N2)2[MII(H2O)6](SO4)2 (MII = Fe, Co, Ni, Cu and Zn) (C5H7N2)2[Mn(H2O)4(SO4)2] crystallize triclinic symmetry (S.G. P $$\overline{1 }$$ ). These complexes possess hybrid structure type an interlayer distance that varies from 10 to 12 Å depen...

acluster[ pt (reo )(?-dppm) ][reo ],2 [dppm=ph pch ] with oxidaton of [pt re(co) ](?-dppm) ][pf ] is prepred . crystals are triclinic,pl; a= 14.154(4)?, b=14.213(3) ?,c = 20.522(4) ? , a = 78.938(14)?, ?= 75.812(19) ? , ?= 74,957(22) ? ;v = 3828.9(1 5) ? ,z =2 ; eraf-noniu cad4 difhctorneter with mo- k radiation, ? = 0.71073 ? ; r = 0.069, r = 0.077 for 284 parameters and 5414 reflections with ...

Six dinuclear ferrous complexes including [Fe2(acpypentO)(O2CMe)(NCS)2] (1), [Fe2(acpypentO)(O2CMe)(NCSe)2] (2), [Fe2(acpypentO)(NCO)3] (3), ([Fe2(acpybutO)(O2CMe)(NCS)2] (5), [Fe2(acpybutO)(O2CMe)(NCO)2] (6), and [Fe2(acpybutO)(O2CMe)(N3)2] (7), one tetranuclear (bis-dinuclear) ferrous compound, [Fe4(acpypentO)2(N3)6] (4), and one mononuclear ferrous compound, [Fe(acpybutOH)(NCS)2] (8), have b...

A triclinic SAPO-34 molecular sieve was synthesized ionothermally. The as-synthesized products were characterized by powder X-ray diffraction (XRD), scanning electron microscope (SEM), nuclear magnetic resonance (NMR), fourier infrared spectrometer (FT-IR) and thermogravimetric (TG) analyses. formation mechanism of the hierarchical porous zeolites factors affecting morphology investigated. resu...

The asymmetric unit of the title compound, C(6)H(7)N(2)O(2) (+)·Cl(-), contains two independent ion pairs. A monoclinic form of the title compound with only one ion pair in the asymmetric unit has been reported previously [Ploug-Sørensen & Andersen (1986). Acta Cryst. C42, 1813-1815]. In the crystal of the title compound, the components are linked into layers parallel to (001) by inter-molecula...

The crystal structure of triclinic hen egg-white lysozyme (HEWL) has been refined against diffraction data extending to 0.65 A resolution measured at 100 K using synchrotron radiation. Refinement with anisotropic displacement parameters and with the removal of stereochemical restraints for the well ordered parts of the structure converged with a conventional R factor of 8.39% and an R(free) of ...

A new series of heterometallic wheels, isolated as [Fe18M6(piv)12(Htea)18(tea)6(N3)6]·n(solvent) (MIII = Y (1a, 1b), Gd (2a, 2b), and Dy (3a, 3b); Hpiv pivalic acid, H3tea triethanolamine), forms by the reaction trinuclear μ3-oxo-linked or hexanuclear μ-OH-linked Fe(III) pivalate clusters with rare earth nitrates, H3tea, azide ligands in MeOH/MeCN EtOH/MeCN media under ultrasonic irradiation. S...