Bis(pyrazolato)-Based Metal?Organic Frameworks Fabricated with 4,4′-Bis((3,5-dimethyl?1H?pyrazol-4-yl)methyl)biphenyl and Late Transition Metals

Aurel Ta?ba?caru; Claudio Pettinari; Fabio MarchettiSimona GalliNorberto Masciocchi

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Bis(pyrazolato)-Based Metal?Organic Frameworks Fabricated with 4,4′-Bis((3,5-dimethyl?1H?pyrazol-4-yl)methyl)biphenyl and Late Transition Metals

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The reaction between the flexible, bis-(pyrazolato)-based ligand 4,4′-bis((3,5-dimethyl-1H-pyrazol-4-yl)methyl)biphenyl (H_2DMPMB) and late transition metal ions allowed the isolation of the two series of thermally stable metal?organic frameworks M(DMPMB) (M = Co, Zn, Cd) and M_2(DMPMB) (M = Cu, Ag). X-ray powder diffraction(XRPD) structure determinations demonstrated that the anti conformation adopted by the ligand, juxtaposed to its exotetradentate coordination mode, induces the formation of a 3-D architecture with nonpervious 1-D channels in the three isomorphous species M(DMPMB) and of corrugated 2-D layers in Cu_2(DMPMB). Coupling thermogravimetric analyses and variable temperature XRPD highlighted that the five materials are thermally stable at least up to 300 °C, both under nitrogen and in air, the Cd(II) derivative decomposing only at the remarkably high temperature of 500 °C. No thermal event could be detected; all the materials preserve their structural motifs up to decomposition. The adsorption properties of the five compounds were assayed toward N_2 at 77 K: while no adsorption was observed for Cd(DMPMB), the other species possess estimated BET and Langmuir specific surface areas in the ranges 64(1)?526(3) m~2/g and 142(4)?713(27) m~2/g, respectively, thus being an example of the interesting phenomenon known as “porosity without pores”. Finally, the luminescence properties of the Zn(II), Cd(II), and Cu(I) derivatives were investigated.

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来源
《Crystal growth & design》 |2014年第6期|3142-3152|共11页
作者
Aurel Ta?ba?caru; Claudio Pettinari; Fabio MarchettiSimona GalliNorberto Masciocchi;
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作者单位

Dipartimento di Scienza e Alta Tecnologia, Universita? dell’Insubria, Via Valleggio 11, 22100 Como, Italy;

Scuola di Scienze del Farmaco e dei Prodotti della Salute, Universita? di Camerino, Via S. Agostino 1, 62032 Camerino, Italy;

Scuola di Scienze e Tecnologie, Universita? di Camerino, Via S. Agostino 1, 62032 Camerino, Italy;

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正文语种英语
中图分类晶体学;
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conformation; architecture; Langmuir;

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1. Pro-porous coordination polymers of the 1,4-bis((3,5-dimethyl-1 H -pyrazol-4-yl)-methyl)benzene ligand with late transition metals [J] . Tǎbǎcaru A., Pettinari C., Masciocchi N.Galli S.Marchetti F.Angjellari M. Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics . 2011,第22期

机译：Pro-porous coordination polymers of the 1,4-bis((3,5-dimethyl-1 H -pyrazol-4-yl)-methyl)benzene ligand with late transition metals
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机译：Evaluation of structural transformation in 2D metal–organic frameworks based on a 4,4′-sulfonyldibenzoate linker: microwave-assisted solvothermal synthesis, characterization and applications

Bis(pyrazolato)-Based Metal?Organic Frameworks Fabricated with 4,4′-Bis((3,5-dimethyl?1H?pyrazol-4-yl)methyl)biphenyl and Late Transition Metals

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