The Cu(II) atom in the title salt, [Cu(C(10)H(24)N(4))(H(2)O)(2)][CH(3)(CH(2))(5)CO(2)](2)·2H(2)O, is chelated by the four N atoms of the 1,4,8,11-tetra-aza-cyclo-tetra-decane (cyclam) ligand and is coordinated by two water mol-ecules in a tetra-gonally Jahn-Teller-distorted octa-hedral geometry. The Cu(II) atom lies on a center of inversion. The cations, anions and uncoordinated water mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds, forming a layer structure parallel to (100). The alkyl chain of the anion is disordered over two positions in a 0.82 (1):0.18 (1) ratio.
The Cu(II) atom in the title salt, [Cu(C(10)H(24)N(4))(H(2)O)(2)][CH(3)(CH(2))(8)CO(2)](2)·2H(2)O, is chelated by the four N atoms of the 1,4,8,11-tetra-aza-cyclo-tetra-decane (cyclam) ligand and is coordinated by two water mol-ecules in a Jahn-Teller-type tetra-gonally distorted octa-hedral geometry. The Cu(II) atom lies on a center of inversion. The cations, anions and uncoordinated water mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds, forming a layer structure parallel to (001).
The Cu(II) atom in the title salt, [Cu(C(10)H(24)N(4))(H(2)O)(2)](C(6)F(5)CO(2))(2)·2H(2)O, is chelated by the four N atoms of the 1,4,8,11-tetra-aza-cyclo-tetra-decane (cyclam) ligand and is coordinated by two water mol-ecules in a Jahn-Teller-type tetra-gonally distorted octa-hedral geometry. The Cu(II) atom lies on a center of inversion. The cations, anions and uncoordinated water mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds, forming a layer structure parallel to (001).
The Cu(II) atom in the title salt, [Cu(C(10)H(24)N(4))(H(2)O)(2)](C(8)H(7)O(2))(2)·H(2)O, is chelated by the four N atoms of the 1,4,8,11-tetra-aza-cyclo-tetra-decane (cyclam) ligand and is coordinated by two water mol-ecules in a Jahn-Teller-type of tetra-gonally distorted octa-hedral geometry. The cations, anions and lattice water mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds to form a layer structure parallel to (001).
The K atom in the title complex, [K(C(10)H(6)NO(2))(C(10)H(7)NO(2))(3)], lies on a twofold rotation axis that relates one N,O-chelating quinoline-2-carb-oxy-lic acid to the other; their N and O atoms are cis to each other in the distorted octa-hedral coordination geometry. The K atom is also coordinated by another monodentate quinoline-2-carb-oxy-lic acid; the acid is disordered with respect to a monodentate quinoline-2-carboxyl-ate anion; the acid and anion are linked by an O-H⋯O hydrogen bond. An O-H⋯N hydrogen bond links adjacent mol-ecules into a linear chain structure along the a axis.
Mol-ecules of the title compound, [Sn(C(7)H(6)Cl)(2)Cl(2)], lie on a twofold rotation axis which passes through the Sn atom. The Sn(IV) atom exists in a distorted tetra-hedral geometry. Adjacent mol-ecules are linked by weak Sn⋯Cl contacts [3.703 (1) Å], forming a linear chain motif extending along the b axis.
Adjacent units of the title polymeric complex, [Sn(C(7)H(6)F)(3)(C(8)H(12)NO(2)S(2))], are bridged by the carboxyl-ate ion into a helical chain running along the b axis. The Sn(IV) atom shows a distorted trans-C(3)SnO(2) trigonal-bipyramidal coordination and is displaced by 0.113 (2) Å out of the C(3)Sn girdle in the direction of the covalently bonded O atom. The ring is disordered of two positions with an occupancy of 0.631 (4) for the major occupied site.
The two Sn-O-C-C-C-O chelate rings in the title compound, [Sn(C(15)H(11)O(2))(2)Cl(2)]·0.5C(7)H(8), adopt envelope conformations, with the Sn atom deviating from the least-squares plane passing through the C and O atoms by 0.626 (1) Å in one ring and by 0.690 (1) Å for the other. The two planes are aligned at an angle of 59.6 (1)°. The Cl atoms occupy cis positions in the octa-hedral SnCl(2)O(4) coordination environment. The solvent mol-ecule is disordered about a center of inversion.
In the crystal structure of the title salt, 2C(6)H(9)N(2) (+)·C(8)H(4)O(4) (2-)·4H(2)O, the terephthalate carboxyl-ate groups inter-acts with the 2-amino-4-methyl-pyridinium cations via a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif. The water mol-ecules form an R(6) (6)(12) ring motif through O-H⋯O hydrogen bonds and these motifs are fused, forming a supra-molecular chain along the c axis. The R(2) (2)(8) and R(6) (6)(12) ring motifs are connected via O-H⋯O hydrogen bonds. In addition, π-π stacking inter-actions are observed between the pyridinium rings [centroid-centroid distance = 3.522 (12) Å].
In the title mol-ecular salt, C(6)H(9)N(2) (+)·C(8)H(5)O(4) (-), the anion is stabilized by an intra-molecular O-H⋯O hydrogen bond, which generates an S(7) ring motif. In the crystal, the cations and anions are linked to form extended chains along [001] by O-H⋯O and N-H⋯O hydrogen bonds. Adjacent chains are crosslinked via C-H⋯O inter-actions into sheets lying parallel to (100).
In the anion of the title mol-ecular salt, C(6)H(9)N(2) (+)·C(7)H(3)N(2)O(7) (-), the two nitro groups are twisted from the attached benzene ring with dihedral angles of 27.36 (10) and 4.86 (11)°. The anion is stabilized by an intra-molecular O-H⋯O hydrogen bond, which generates an S(6) ring motif. In the crystal, the cations and anions are linked by N-H⋯O and C-H⋯O inter-actions and are further consolidated by C-H⋯π inter-actions, to generate a three-dimensional network. A short O⋯N contact of 2.876 (2) Å also occurs.
The title 1:1 adduct, C(5)H(5)BrN(2)·C(7)H(6)O(3), contains two mol-ecules of each species in the asymmetric unit, with similar geometries. In the crystal, mol-ecules are linked to form extended chains along [100] by N-H⋯O, O-H⋯O, O-H⋯N and C-H⋯O hydrogen bonds. Adjacent chains are crosslinked via further N-H⋯O inter-actions into sheets lying parallel to (001). The crystal studied was an inversion twin with a 0.54 (2):0.46 (2) domain ratio.
In the title salt, C(6)H(9)N(2) (+)·C(4)H(3)O(4) (-), the dihedral angle between the pyridine ring and the plane formed by the hydrogen fumarate anion is 85.67 (6)°. Excluding the amino and methyl groups, the atoms of the cation are coplanar, with a maximum deviation of 0.005 (1) Å. In the crystal structure, the protonated N atom and the 2-amino group of the cation are hydrogen bonded to the carboxyl-ate O atoms of the anion via a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif. These motifs are further connected through N-H⋯O and C-H⋯O hydrogen bonds, leading to a supra-molecular chain along the c axis. These chains are further cross-linked via a pair of O-H⋯O hydrogen bonds involving centrosymmetrically related hydrogen fumarate anions, forming a two-dimensional network parallel to (101). These planes are further interconnected by O-H⋯O interactions into a three-dimensional network.
In the title salt, C(5)H(6)BrN(2) (+)·C(5)H(7)O(4) (-), the 2-amino-5-bromo-pyridinium cation is essentially planar, with a maximum deviation of 0.005 (3) Å. In the crystal structure, the proton-ated N atom and the 2-amino group of the cation are hydrogen bonded to the carboxyl-ate O atoms of the anion via a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif. The ion pairs are further connected via O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds, forming a two-dimensional network parallel to the bc plane. In the network, the hydrogen glutarate (4-carb-oxy-butano-ate) anions self-assemble through O-H⋯O hydrogen bonds, forming a supra-molecular chain along the c axis.
In the title salt, C(5)H(6)ClN(2) (+)·C(5)H(7)O(4) (-), the 2-amino-5-chloro-pyridinium cation is essentially planar, with a maximum deviation of 0.010 (3) Å. In the crystal structure, the protonated N atom and the 2-amino group of the cation are hydrogen bonded to the carboxyl-ate O atoms of the anion via a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif. The ion pairs are further connected via O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds, forming a layer parallel to the bc plane. In the layer, the hydrogen glutarate anions self-assemble via O-H⋯O hydrogen bonds, forming a supra-molecular chain along the c axis. Furthermore, the cations and anions are stacked down along the a axis, forming a three-dimensional network.
In the centrosymmetric title compound, C(18)H(12)N(2)S(24), the five- (r.m.s. deviation = 0.002 Å) and six-membered (r.m.s. deviation = 0.002 Å) rings are essentially coplanar [dihedral angle between rings = 1.9 (1)°].
The Schiff base mol-ecule in the title compound, C(14)H(11)BrN(2)O(4)·H(2)O, is almost planar with an r.m.s. deviation for the non-H atoms of 0.16 Å. In the crystal structure, the Schiff base mol-ecules and the water mol-ecules are linked together by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds, leading to layers parallel to the bc plane. An intra-molecular O-H⋯N hydrogen bond involving the imine N atom and a hy-droxy substituent is also observed.
In the crystal structure of the title compound, C(6)H(9)N(2) (+)·0.5C(4)H(2)O(4) (2-)·0.5C(4)H(6)O(4), the fumarate dianion and fumaric acid mol-ecule are located on inversion centres. The 2-amino-5-methyl-pyrimidinium cation inter-acts with the carboxyl-ate group of the fumarate anion through a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif. These motifs are centrosymmetrically paired via N-H⋯O hydrogen bonds, forming a complementary DDAA array. The carboxyl groups of the fumaric acid mol-ecules and the carboxyl-ate groups of the fumarate anions are hydrogen bonded through O-H⋯O hydrogen bonds, leading to a supra-molecular chain along [101]. The crystal structure is further stabilized by weak C-H⋯O hydrogen bonds.
In the crystal structure of the title salt, C(6)H(9)N(2) (+)·C(7)H(5)O(6)S(-)·H(2)O, the water mol-ecule acts as an acceptor of bifurcated N-H⋯O hydrogen bonds from the pyridinium H atom and one H atom of the 2-amino group, forming an R(2) (1)(6) ring. The 3-carb-oxy-4-hy-droxy-benzene-sulfonate anions self-assemble via O-H⋯O hydrogen bonds, leading to supra-molecular chains along the a axis. These chains and R(2) (1)(6) motifs are linked via O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds, forming a layer parallel to the ac plane. There is also an intra-molecular O-H⋯O hydrogen bond in the 3-carb-oxy-4-hy-droxy-benzene-sulfonate anion, generating an S(6) ring motif.
The asymmetric unit of the title mol-ecular salt, C(6)H(9)N(2) (+)·C(7)H(5)O(3) (-), contains two cations and two anions. Both the salicylate anions contain an intra-molecular O-H⋯O hydrogen bond, which generates an S(6) ring. Both the 2-amino-4-methyl-pyridine mol-ecules are protonated at their pyridine N atoms. In the crystal, both cations form two N-H⋯O hydrogen bonds to their adjacent anions, forming ion pairs. Further N-H⋯O links generate sheets lying parallel to the ab plane. In addition, weak C-H⋯O bonds and aromatic π-π stacking inter-actions [centroid-centroid distances = 3.5691 (9) and 3.6215 (9) Å] are observed between the cations and anions.