Ca-, Sr-, and Ba-Coordination polymers based on anthranilic acid via mechanochemistry.

Ca-, Sr-, and Ba-Based coordination polymers (CPs) were prepared mechanochemically by milling metal-hydroxide samples with anthranilic acid (oABAH). {[Ca(oABA)2(H2O)3]}n (1) consists of one-dimensional polymeric chains that are further connected by a hydrogen-bonding network. {[Sr(oABA)2(H2O)2]·H2O}n (2) is a one-dimensional CP in which water molecules bridge Sr2+ ions and increase the dimensionality by building an extended network.

Ca-Tetrafluorophthalate and Sr-isophthalate: mechanochemical synthesis and characterization in comparison with other Ca-and Sr-coordination polymers.

New Ca- and Sr-based coordination polymers (CPs) were mechanochemically synthesized by milling metal hydroxide samples (M = Ca, Sr) with tetrafluorophthalic acid (H2oBDC-F4) and isophthalic acid (H2mBDC). [Ca(oBDC-F4)(H2O)2] (1) exhibits a small surface area which is slightly increased after removing the crystal water. On the other hand, the hydrated sample of the nonfluorinated [Sr(mBDC)(H2O)3.

Strontium-coordination polymers based on tetrafluorophthalic and phthalic acids: mechanochemical synthesis, ab initio structures determination, and spectroscopic characterization.

Two strontium-based dicarboxylate systems [Sr(oBDC-F)(HO)] (1) and [{Sr(oBDC)(HO)}·HO] (2) were synthesized mechanochemically via milling of Sr(OH)·8HO with tetrafluorophthalic acid (HoBDC-F) or phthalic acid (HoBDC), respectively. The new structures were determined ab initio from the powder X-ray diffraction (PXRD) data. Both compounds 1 and 2 crystallize in the monoclinic space group P2/c as two-dimensional coordination polymers (2D-CPs).

Ca- and Sr-tetrafluoroisophthalates: mechanochemical synthesis, characterization, and ab initio structure determination.

New fluorinated coordination polymers were prepared mechanochemically by milling the alkaline earth metal hydroxides M(OH)·xHO (M: Ca, Sr) with tetrafluoroisophthalic acid (HmBDC-F). The structures of [{Ca(mBDC-F)(HO)}·HO] (1) and [{Sr(mBDC-F)(HO)}·HO] (2) were determined based on ab initio calculations and their powder X-ray diffraction (PXRD) data. The compounds are isomorphous and crystallize in the orthorhombic space group P222.

Tungsten(VI) and tungsten(V) fluoride complexes.

WF(6) reacts with phosphines R(3)P forming 1:1 compounds. With R=P(CH(3))(3) the coordination around the tungsten atom is capped trigonal prismatic, with R=P(CH(3))(2)C(6)H(5) the coordination is capped octahedral, as established by single-crystal structure determinations: [(CH(3))(3)P--WF(6)]: a=752.5(21), b=945.