C27H19CdClN4O2, triclinic, P1 (no. 2), a = 9.485(3) Å, b = 10.650(3) Å, c = 13.167(4) Å, a = 80.904(7)°, b = 85.256(7)°, g = 66.161(6)°, V = 1201.0 Å 3 , Z = 2, Rgt(F) = 0.024, wRref(F 2 ) = 0.060, T = 273 K.

C18H15CdN2O5, monoclinic, P121/n1 (no. 14), a = 9.9973(5) Å, b = 9.0433(4) Å, c = 19.4849(8) Å, b = 101.235(2)°, V = 1727.9 Å 3 , Z = 4, Rgt(F) = 0.025, wRref(F 2 ) = 0.065, T = 273 K. Source of materialThe title complex was prepared analogously to the synthesis of [CdCl(C3H3O2)(C12H10N2)2] except for the pH of this solution controlled in the range of 8-9 [1]. Freshly prepared precipitate Cd(OH)2, which was obtained from 1.0 ml (1.0 M) NaOH to a stirred aqueous solution of CdCl 2 · 6H2O (0.269 g, 1.0 mmol) in 5 ml H2O, was added to a stirred aqueous solution of 1,10-phenanthroline monohydrate (0.198 g, 1.0 mmol) and acrylic acid (0.144 g, 2.0 mmol) in 20 ml H2O/ethanol (1:1, v/v) . The mixture was further stirred for ca. 30 min at room temperature, and the pH of the mixture solution was controlled in the range of 8-9 with 1 M NaOH solution. The mixture then was further stirred for another 2 h and filtered off and the resultant filtrate was allowed to stand by slow evaporation at room temperature. The colorless blocklike crystals were obtained 30 days later (yield 80 % based on the Cd(OH)2 input). DiscussionThe title structure consists of Cd(H 2 O)(C 3 H 3 O 2 ) 2 (C 12 H 10 N 2 ) complex molecules, where the seven-coordinated Cd atom adopts a distorted monocapped octahedral environment formed by two nitrogen atoms of an 1,10-phenanthroline ligand and five oxygen atoms from one aqua ligand and two acrylato anion groups with the acrylato O2 atom residing at the cap site and the axial apical positions occupied by one aromatic pyridyl atoms (N2) and one acrylato O atom (O1) (figure, top). The equatorial plane sites are defined by one aromatic pyridyl N atom (N1), one aqua ligand (O5) and two acrylato O atoms (O3, O4) with the pyridyl N1 atom shifted from the basal plane of 0.9999(3) Å. The CdN2 length (2.3706(2) Å) is slightly longer than the CdN1 length (2.3676 (2) direction, the complex molecules are interlinked via the intermolecular hydrogen-bonding interactions into 1D double chains. The resulting chains are further held by p-p interactions between the 1,10-phenanthroline ligands of neighboring double chains into layers parallel to (101) with an average interplanar distance of 3.4522(5) Å (figure, bottom).

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Source of materialA mixture solution of 18 ml H 2O/ethanol (1:1, v/v) containing ZnO (0.0814 g, 1.0 mmol), 1,10-phenanthroline monohydrate (0.198 g, 1.0 mmol) and acrylic acid (0.144 g, 2.0 mmol) was sealed in a Teflon-lined stainless steel vessel (25 ml), and the vessel was heated at 363 K for 7d, then cooled to room temperature and filtered off. The resultant filtrate was allowed to stand by slow evaporation at room temperature. The colorless block crystals generated 21 days later (yield 50 % based on the initial ZnO input). DiscussionThe title compound consists of [Zn(C 3H3O2)2(H2O)(C12H10N2)] complex molecules and lattice water molecules. The Zn atoms are each square pyramidally coordinated by two nitrogen atoms of one 1,10-phenanthroline ligand (N1, N2) and three oxygen atoms of aqua ligand (O5) and two monodentate acrylato anion ligands (O1, O3). Two crystallographically independent acrylato anions coordinate the Zn atoms in syn and anti modes, respectively. The apex is occupied by one acrylato O1 atom, and the Zn atom is shifted by 0.554 Å from the basal plane defined by atoms O3, O5, N1 and N2 (figure, top). This differs from that observed in the previously reported structure of aquaphenanthrolinebis(4-nitrobenzoato)zinc ( . The cis bond angles at the central Zn atom from the apical O1 atom fall in the range of 97.83(6)° 120.25(6)°, indicating a significant deviation from the value for a perfect square pyramidal environment. Within the crystal structure, there exist strong intra-molecular hydrogen-bonding interactions and intermolecular hydrogenbonding interactions. On the one hand, the coordinated aqua molecules donor hydrogen atoms to the uncoordinated acrylato oxygen atoms (O4) (d(O···O) = 2.631 Å, ÐOH···O = 159.9°) and lattice water molecules oxygen atoms (O1w) (d(O···O) = 2.697 Å, ÐOH···O = 173.85°) to form strong intramolecular hydrogen bonds. On the other hand, the lattice water molecules functioning as hydrogen-bond donors contribute hydrogen atoms to the uncoordinated acrylato oxygen atoms (O2

C12H10CuMoN2O5, monoclinic, P12 1 /n1 (no. 14), a = 14.147 ( Source of materialA mixture of Cu(NO3)2 · 2H2O (0.302 g, 1.25 mmol), V2O5 (0.115 g, 1.25 mmol), As 2 O 5 (0.144 g, 1.25 mmol), Na 2 MoO 4 · 2H2O (3.326 g, 13.75 mmol), 1,10-phenanthroline monohydrate (0.248 g, 1.25 mmol) and H2O (18 ml, 1 mol) was sealed in a Teflon-lined stainless steel vessel (25 ml), and the vessel was heated at 393 K for 7 d, then cooled to room temperature. Block shaped blue crystals were isolated (yield 20 % based on the initial Cu(NO3)2 · 2H2O amount). DiscussionThe crystal structure of the title complex, [Cu(C 12 2+ subunits are linked by the MoO4 groups into one dimensional ladder-shape double chains. Within the crystal structure, the lattice water molecules act as hydrogen bonding acceptors receiving hydrogen atoms from 1,10-phenanthroline groups to form intra-chain hydrogen bonds.