Organic–inorganic hybrids based on four-electron reduced Keggin β-isomer phosphododecamolybdates and diazines

Vitoria, Pablo; Ugalde, Marı́a; Gutiérrez‐Zorrilla, Juan M.; Román, Pascual; Luque, Antonio; Felices, Leire San; García–Tojal, Javier

doi:10.1039/b207243b

Cited by 18 publications

(10 citation statements)

References 35 publications

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“…The interest in supporting TM−oxalate complexes, which have been extensively studied in magnetostructural research works, on Keggin-POMs lies in the possibility of tuning the magnetic properties due to their high dependence on the nature and spatial disposition of the ligands . Moreover, the dimers could play the role of structure-directing agents, so that the Keggin-POMs could be templated to lead to opened structures with tailorable pore shapes and sizes …”

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A Novel Organic−Inorganic Hybrid Based on a Dinuclear Copper Complex Supported on a Keggin Polyoxometalate

et al. 2003

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The autoassembly process of copper-oxalate dimers and Keggin type polyoxometalates leads to the first example of a new family of organic-inorganic hybrids, K(14)[(Cu(2)(bpy)(2)(mu-ox))(SiW(11)O(39)Cu(H(2)O))](2)[SiW(11)O(39)Cu(H(2)O)]. approximately 55H(2)O. This compound crystallizes in the monoclinic space group C2/m, a = 37.932(6) A, b = 21.303(3) A, c = 12.546(2) A, beta = 106.16(1) degrees, Z = 2. The crystal structure reveals the presence of a polymeric hybrid built up of alternating dimer and polyoxometalate entities.

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A Novel Organic−Inorganic Hybrid Based on a Dinuclear Copper Complex Supported on a Keggin Polyoxometalate

et al. 2003

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“…The pyrimidine (pym) units were hydrogen bonded to the water molecules, which formed part of a 'waterfall' along the [010] direction with the rest of the water molecules, and were also connected via -interactions with the surface O atoms of the tetrameric [-PMo 12 O 40 ] 3À units that adopt a helicoidal arrangement, thereby constructing organic-inorganic hybrids. In a related study, pyrazine units, through participation of both N atoms in hydrogen bonding, create a 3D tunnel network that can accommodate the helicoidal arrangement of [PMo 12 O 40 ] 3À chains and construct 3D reinforced hybrids (Vitoria et al, 2003). The 2-acetylpyrazinium ion also exploits N-HÁ Á ÁO interactions in its interaction with [PW 12 O 40 ] 3À to assemble a hybrid (Liu, 2010).…”

Section: Role Of Hydrogen Bonding In the Stabilization Of Pom-based Hmentioning

confidence: 99%

A survey of interactions in crystal structures of pyrazine-based compounds

Taghipour

Mirzaei

2019

Acta Crystallogr C

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The important role of pyrazine (pz) and its derivatives in fields such as biochemistry and pharmacology, as well as in the study of magnetic properties, is surveyed. Recognition of these properties without extensive investigations into their structural properties is not possible. This review summarizes interactions that exist between these organic compounds by themselves in the solid state, as well as those in coordination polymers with metal ions and in polyoxometalatebased hybrids. Complexes based on pyrazine ligands can generate metal-organic framework (MOF) structures that bind polyoxometalates (POMs) through covalent and noncovalent interactions. Some biological and magnetic properties involving these compounds are considered and the effect of hydrogen bonding on their supramolecular architectures is highlighted. feature articles 232 Taghipour and Mirzaei A survey of interactions of pyrazine-based compounds Acta Cryst. (2019). C75, 231-247 feature articles 234 Taghipour and Mirzaei A survey of interactions of pyrazine-based compounds Acta Cryst. (2019). C75, 231-247 feature articles Acta Cryst. (2019). C75, 231-247 Taghipour and Mirzaei A survey of interactions of pyrazine-based compounds 237 Figure 9Structure of [Cu 2 (PZOAPZ-H)Br 3 (H 2 O) 2 ]. Reproduced from Grove et al. (2004) with permission. feature articles Acta Cryst. (2019). C75, 231-247 Taghipour and Mirzaei A survey of interactions of pyrazine-based compounds 245

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“…4 Phosphomolybdates (PMOs) provide an excellent opportunity to explore these issues as one can tune the architectures from simple cluster based solids to nanostructured materials by a suitable choice of organic amine(s). [5][6][7][8][9][10][11][12] A careful analysis of the PMOs synthesized from solution routes suggested the following structural features: (i) Extended PMOs having -Mo-O-P-O-Mo-O-connectivity are invariably obtained under hydrothermal conditions in acidic medium. 13 [14][15][16][17][18][19][20] In contrast, long chain amines like dodecylpyridinium chloride favor nanostructural features.…”

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confidence: 99%

Growth of Copper Pyrazole Complex Templated Phosphomolybdates: Supramolecular Interactions Dictate Nucleation of a Crystal

Thomas

Ramanan

2008

Crystal Growth & Design

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Five copper pyrazole complex based phosphomolybdates are self assembled at room temperature from an aqueous solution containing sodium molybdate, cupric chloride, and pyrazole acidified with phosphoric acid: one-dimensional (1D) chains in [{Cu(pz)(H 2 O)}{Cu(pz) 3 (H 2 O)}{Cu(pz) 4 }{P 2 Mo 5 O 23 }], 1, copper pyrazole complex intercalated two-dimensional (2D) sheets in {Cu(pz) 2 (H 2 O) 4 }[{Cu(pz) 2 (H 2 O)} 2 {Cu(pz) 4 } 2 {HP 2 Mo 5 O 23 } 2 ] · 6H 2 O, 2, hexadecameric water clusters incorporated between 1D chains in [{Cu(pz) 4 } 3 {Cu(pz) 3 (H 2 O)} 2 {HP 2 Mo 5 O 23 } 2 ] · 9H 2 O, 3, a water-mediated interpenetrated three-dimensional (3D) network in [{Cu(pz) 4 } 2 {H 2 P 2 Mo 5 O 23 }] · H 2 O, 4, and copper pyrazole complex pillared 2D phosphomolybdate sheets in [{Cu(pz) 2 }P 2 Mo 2 -O 12 (H 2 O) 2 ], 5.Detailed structural characterization of these solids was established by single crystal and powder X-ray diffraction techniques, FTIR, and thermal analysis. This paper proposes intuitive mechanisms to provide molecular insights into the role of in situ copper pyrazole complexes generated in solution in dictating a particular supramolecular assembly which eventually influences the nucleation of a crystal through a concerted condensation process. The role of the complexes as intercalant, pillaring unit, etc. has been demonstrated by these examples.

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Organic–inorganic hybrids based on four-electron reduced Keggin β-isomer phosphododecamolybdates and diazines

Cited by 18 publications

References 35 publications

A Novel Organic−Inorganic Hybrid Based on a Dinuclear Copper Complex Supported on a Keggin Polyoxometalate

A Novel Organic−Inorganic Hybrid Based on a Dinuclear Copper Complex Supported on a Keggin Polyoxometalate

A survey of interactions in crystal structures of pyrazine-based compounds

Growth of Copper Pyrazole Complex Templated Phosphomolybdates: Supramolecular Interactions Dictate Nucleation of a Crystal

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