2-[2-(2-Pyrid­yl)eth­yl]isoindolinium perchlorate

In the title salt, C15H17N2 +·ClO4 −, the isoindoline N atom is protonated and an intra­molecular N—H⋯N hydrogen bond occurs. In the crystal, N—H⋯O and numerous weak C—H⋯O inter­actions occur between the cation and anion. The O atoms of the perchlorate anion are disordered over four sets of sites with occupancies of 0.438 (4), 0.270 (9), 0.155 (8) and 0.138 (5)

(m-Phenyl­enedimethyl­ene)diammonium p-nitro­phenyl­phosphate perchlorate

The title compound, C8H14N2 2+·C12H8N2O8P−·ClO4 −, was formed by the reaction of α,α-bis-m-xylenediamine and sodium bis-p-nitro­phenyl­phosphate in the presence of Zn(ClO4)·6H2O in methanol solution. The two amine groups of the m-xylenediammonium ion are each protonated and each hydrogen-bonded to two O atoms of the phosphate anion, which acts as a 1,3-bridge. The ammonium groups are arranged matched face to face and each pair is doubly bridged by two perchlorate ions through hydrogen bonding. In addition, there are also weak C—H⋯O inter­actions. Both the N—H⋯O and C—H⋯O inter­actions are contained in a channel down the a axis. The perchlorate oxygen atoms are disordered over two positions with site occupancy factors of ca 0.7 and 0.3

(Acetonitrile)[bis­(2-pyridylmeth­yl)amine]bis­(perchlorato)copper(II)

In the title compound, [Cu(ClO4)2(C12H13N3)(C2H3N)], the CuII atom is six-coordinate in a Jahn–Teller distorted octahedral geometry, with coordination by the tridentate chelating ligand, an acetonitrile mol­ecule, and two axial perchlorate anions. The tridentate ligand bis­(2-pyridylmeth­yl)amine chelates meridionally and equatorially while an acetonitrile mol­ecule is coordinated at the fourth equatorial site. The two perchlorate anions are disordered with site occupancy factors of 0.72/0.28. The amine H is involved in intra­molecular hydrogen bonding to the perchlorate O atoms and there are extensive but weak inter­molecular C—H⋯O inter­actions

[(6-Methyl-2-pyridylmeth­yl)(2-pyridylmeth­yl)amine][(2-pyridylmeth­yl)amine]copper(II) bis­(perchlorate)

The title compound, [Cu(C6H8N2)(C13H15N3)](ClO4)2, is a mixed ligand complex with the CuII atom coordinated by (6-methyl-2-pyridylmeth­yl)(2-pyridylmeth­yl)amine, acting as a tridentate ligand, and 2-(2-amino­meth­yl)pyridine, as a bidentate ligand, leading to an N5 square-pyramidal geometry. The amine H atoms are involved in hydrogen bonding to the perchlorate O atoms and there are extensive but weak inter­molecular C—H⋯O inter­actions in the crystal structure. The perchlorate ions are each disordered over two positions, with site occupancies of 0.601 (8):0.399 (8) and 0.659 (11):0.341 (11)

Di-μ-bromido-bis({bis[2-(2-pyridyl)ethyl]amine}copper(II)) bis(perchlorate)

Each Cu atom in the dinuclear centrosymmetric title complex, [Cu2Br2(C14H17N3)2](ClO4)2, is ligated in a distorted square-pyramidal geometry (τ = 0.31) by a tridentate bis[2-(2-pyridyl)ethyl]amine ligand, and by two bridging Br atoms. In addition, the dinuclear species is stabilized by two hydrogen-bonded perchlorate anions