Ir spectroscopic properties of hydrogen bonding in 1:1 salts of 1,8-bis(N,N-dimethylamino)naphthalene

Careful choice of the organic ligands is one of the most important parameters in the rational design and synthesis of coordination polymers. Aromatic polycarboxylates have been widely used in the preparation of metal–organic polymers since they can utilize various coordination modes to form diverse structures and can act as hydrogen-bond acceptors and donors in the assembly of supramolecular structures. Nitrogen-heterocyclic organic compounds have also been used extensively as ligands for the construction of polymers with interesting structures. In the polymers catena-poly[[[diaquabis{2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole-κN 3}cobalt(II)]-μ2-benzene-1,4-dicarboxylato-κ2 O 1:O 4] dihydrate], {[Co(C8H4O4)(C12H11N4)2(H2O)2]·2H2O} n , (I), and catena-poly[[[diaquabis{2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole-κN 3}nickel(II)]-μ2-benzene-1,4-dicarboxylato-κ2 O 1:O 4] dihydrate], {[Ni(C8H4O4)(C12H11N4)2(H2O)2]·2H2O} n , (II), the CoII or NiII ion lies on an inversion centre and exhibits a slightly distorted octahedral coordination geometry, coordinated by two N atoms from two imidazole rings and four O atoms from two monodentate carboxylate groups and two water molecules. The dicarboxylate ligands bridge metal ions forming a polymeric chain. The 2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole ligands coordinate to the CoII or NiII centres in monodentate modes through an imidazole N atom and are pendant on opposite sides of the main chain. The two structures are isomorphous. In the crystal, the one-dimensional chains are further connected through O—H...O, O—H...N and N—H...O hydrogen bonds, leading to a three-dimensional supramolecular architecture. In addition, the IR spectroscopic properties, PXRD patterns, thermogravimetric behaviours and fluorescence properties of both polymers have been investigated.

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Alkyl pyridinium iodocyanocuprate(i) chains (RPy)2[Cu2I3(CN)]: insight into structural, electronic and spectroscopic properties

Dalton Transactions ◽

10.1039/c9dt04340c ◽

2020 ◽

Vol 49 (5) ◽

pp. 1492-1500

Author(s):

Taylor C. Wells ◽

Michaela E. Streep ◽

Abigail L. Martucci ◽

Aaron D. Nicholas ◽

Robert D. Pike

Keyword(s):

Hydrogen Bonding ◽

Charge Transfer ◽

Spectroscopic Properties ◽

Insight Into

Reaction of RPyI, CuI, and CuCN produces anionic iodocyanocuprate(i) chains, (RPy)2[Cu2I3CN] which exhibit charge transfer that is influenced by the hydrogen bonding between the cation and the triiodide groups.

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Molecular structure, hydrogen bonding, basicity and spectroscopic properties of N,N′-dimethylpiperazine betaines and their hydrohalides

Journal of Molecular Structure ◽

10.1016/s0022-2860(02)00234-x ◽

2002 ◽

Vol 614 (1-3) ◽

pp. 23-32 ◽

Cited By ~ 23

Author(s):

Z. Dega-Szafran ◽

M. Jaskólski ◽

I. Kurzyca ◽

P. Barczyński ◽

M. Szafran

Keyword(s):

Molecular Structure ◽

Hydrogen Bonding ◽

Spectroscopic Properties

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Relaxation and IR spectroscopic properties of the CN− stretching mode in silver halides

Radiation Effects and Defects in Solids ◽

10.1080/10420159508227244 ◽

1995 ◽

Vol 134 (1-4) ◽

pp. 341-344

Author(s):

C. E. Mungan ◽

U. Happeki ◽

W. Von Der Osten ◽

A. J. Severs

Keyword(s):

Spectroscopic Properties ◽

Silver Halides ◽

Ir Spectroscopic

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Improved syntheses, and structural and electronic characterization of carboxamide-substituted TpCONHPh,Meand TpCONHt-Bu,Meligands

Acta Crystallographica Section C Crystal Structure Communications ◽

10.1107/s0108270113015898 ◽

2013 ◽

Vol 69 (9) ◽

pp. 947-953 ◽

Cited By ~ 2

Author(s):

Eric R. Sirianni ◽

Glenn P. A. Yap ◽

Eser S. Akturk ◽

Klaus H. Theopold

Keyword(s):

Crystal Structure ◽

Hydrogen Bonding ◽

Spectroscopic Properties ◽

Carbonyl Complexes ◽

Strong Electron ◽

Complex Molecules ◽

Solvent Molecules ◽

Related Compounds

Improvements in the syntheses of the carboxamide-substituted tris(pyrazolyl)borate ligands TpCONHPh,Me[tris(3-anilinocarbonyl-5-methylpyrazol-1-yl)borate] and TpCONHt-Bu,Me[tris(3-tert-butylaminocarbonyl-5-methylpyrazol-1-yl)borate] are reported. Their TlIsalts, namely [tris(3-anilinocarbonyl-5-methylpyrazol-1-yl-κN2)borato]thallium(I), [Tl(C33H31BN9O3)], (II), and [tris(3-tert-butylaminocarbonyl-5-methylpyrazol-1-yl-κN2)borato]thallium(I), [Tl(C27H43BN9O3)], (III), as well as the CuIcarbonyl complexes (TpCONHPh,Me)Cu(CO), namely carbonyl[tris(3-anilinocarbonyl-5-methylpyrazol-1-yl-κN2)borato]copper(I) tetrahydrofuran trisolvate, [Cu(C33H31BN9O3)(CO)]·3C4H8O, (IV), and (TpCONHt-Bu,Me)Cu(CO), namely carbonyl[tris(3-tert-butylaminocarbonyl-5-methylpyrazol-1-yl-κN2)borato]copper(I) tetrahydrofuran hemisolvate, [Cu(C27H43BN9O3)(CO)]·0.5C4H8O, (V), have been prepared. Their spectroscopic properties and structures are compared with those of related compounds. The molecules of (II)–(V) show hydrogen bonding to either solvent molecules or neighboring complex moleculesviaamide groups. The title compounds feature the ability to engage other ligands in hydrogen bonding and they show strong electron-withdrawing character. Compound (V) displays voids ofca800 Å3in the crystal structure.

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