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Cis-(Acetato-?(2)O,O')(5,5,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-decane-?(4)N,N',N'',N''')nickel(II) perchlorate monohydrate.

ABSTRACT: The complete cation in the title hydrated mol-ecular salt, [Ni(CH(3)CO(2))(C(16)H(36)N(4))]ClO(4)·H(2)O, is generated by the application of crystallographic twofold symmetry; the perchlorate anion and water mol-ecule are each disordered around a twofold axis. The Ni(II) atom exists within a cis-N(4)O(2) donor set based on a strongly distorted octa-hedron and defined by the four N atoms of the macrocyclic ligand and two O atoms of a symmetrically coordinating acetate ligand. In the crystal, hydrogen bonding (water-acetate/perchlorate O-H?O and amine-perchlorate N-H?O) leads to layers in the ab plane. The layers stack along the c axis, being connected by C-H?O(water) inter-actions. The crystal studied was found to be a non-merohedral twin; the minor component refined to 15.9?(6)%.

SUBMITTER: Roy TG

PROVIDER: S-EPMC3343905 | biostudies-other | 2012 Apr

REPOSITORIES: biostudies-other

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cis-(Acetato-κ(2)O,O')(5,5,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-decane-κ(4)N,N',N'',N''')nickel(II) perchlorate monohydrate.

Roy Tapashi G TG Palit Debashis D Nath Babul Chandra BC Ng Seik Weng SW Tiekink Edward R T ER

Acta crystallographica. Section E, Structure reports online 20120331 Pt 4

The complete cation in the title hydrated mol-ecular salt, [Ni(CH(3)CO(2))(C(16)H(36)N(4))]ClO(4)·H(2)O, is generated by the application of crystallographic twofold symmetry; the perchlorate anion and water mol-ecule are each disordered around a twofold axis. The Ni(II) atom exists within a cis-N(4)O(2) donor set based on a strongly distorted octa-hedron and defined by the four N atoms of the macrocyclic ligand and two O atoms of a symmetrically coordinating acetate ligand. In the crystal, hydro ...[more]

PMID: 22589873

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(Cinnamato-?(2)O,O')(5,5,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-decane-?(4)N,N',N'',N''')nickel(II) perchlorate monohydrate.

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(Benzoato-κO,O')(5,5,7,12,12,14-hexa-methyl-1,4,8,11-tetra-azacyclo-tetra-decane-κN,N',N'',N''')nickel(II) perchlorate benzoic acid solvate.

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catena-Poly[[[(5,5,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-decane-κ(4)N)nickel(II)]-μ-oxido-[dioxidotungstate(VI)]-μ-oxido] tetra-hydrate].

Project description:In the title compound, {[NiWO(4)(C(16)H(36)N(4))]·4H(2)O}(n), the Ni(II) ion lies on an inversion center and is octahedrally coordinated by four N atoms of the tetradentate macrocyclic 5,5,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-decane (L) ligand in the equatorial plane and two O atoms of [WO(4)](2-) anions in axial positions. Each [WO(4)](2-) anion bridges two adjacent [NiL](2+) cations, forming a chain along [001]. The chains are further connected via N-H⋯O, O-H⋯O and C-H⋯O hydrogen-bonding inter-actions, generating a three-dimensional structure.

| S-EPMC3435596 | biostudies-literature

Crystal structures of two nickel(II) macrocyclic salts: (5,7,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-deca-ne)nickel(II) bis-(perchlorate) monohydrate and (5,7,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-deca-ne)nickel(II) dibromide trihydrate.

Project description:The crystal structure of the Ni-14 macrocycle salt, (5,7,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-deca-ne)nickel(II) bis-(perchlorate) hemihydrate, [Ni(C16H36N4)]2(ClO4)4·H2O, contains two different diasteriomeric macrocyclic cations in the asymmetric unit, one with two NH protons on each side of the cation (Ia), and the other with all four NH protons on the same side (Ib). The crystal structure of the bromide trihydrate salt of the same Ni-14 macrocyclic cation, namely (5,7,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-deca-ne)nickel(II) dibromide trihydrate, [Ni(C16H36N4)]Br2·3H2O (II), contains only the same diastereomer as Ib, with the four N-H bonds on the same side. The geometry around the Ni atom differs slightly between the two diastereomeric cations, as the mean Ni-N distance in Ia is 1.952 (2) Å, while that for Ib and II is 1.928 (2) Å. The hexa-methyl substitution in all three macrocyclic cations has the two dimethyl-substituted C atoms cis to one another, different from the trans 5,5,7,12,12,14-hexa-methyl Ni-14 cations found in all but one of the many published crystal structures of hexa-methyl Ni-14 macrocycles. In each of the two crystal structures, the anions, water mol-ecules, and N-H protons of the macrocyclic cations form extensive hydrogen-bonded zigzag chains propagating along [001] in I and [010] in II.

| S-EPMC6399696 | biostudies-literature

(Acetato-?O)(2,5,5,7,9,12,12,14-octa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-decane-?N,N',N'',N''')zinc perchlorate.

Project description:The Zn(II) atom in the cation of the title salt, [Zn(C(2)H(3)O(2))(C(18)H(40)N(4))]ClO(4), is five-coordinated by the four N atoms of the macrocycle and the O atom of the monodentate acetate ligand. The N(4)O donor set is based on a trigonal bipyramid with two N atoms occupying axial positions [N-Zn-N = 170.89?(16)°]. The perchlorate anions are associated with the cations via N-H?O hydrogen bonds; intra-molecular N-H?O(acetate) inter-actions are also observed. The neutral aggregates are connected into an helical chain along the b axis via N-H?O(acetate) hydrogen bonds. The perchlorate anion was found to be disordered about a pseudo-threefold axis: the major component of the disorder had a site occupancy factor of 0.692?(11).

| S-EPMC3238594 | biostudies-literature

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