3D coordination polymers with N-heterocyclic Ga(I) moieties

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Resumo

The reactions of bimetallic acenaphthene-1,2-diimine complex [(Dpp-bian-GaCr(CO)5]2- [Na(Thf)2]2 (I) (Dpp-bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) with 4,4ʹ-bipyridine (4,4ʹ-Bipy) and 1,3-bis(4-pyridyl)propane (Bpp) in THF gave 3D coordination polymers [{(Dppbian) GaCr(CO)5}{Na(4,4ʹ-Bipy)3}]n (II) and [(Dpp-bian)GaCr(CO)4Na(Et2O)(Bpp)1,5]n (III), respectively. Compounds II and III were characterized by elemental analysis and NMR and IR spectroscopy. The molecular structure of II was established by X-ray diffraction (CCDC no. 2278024).

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Sobre autores

Т. Koptseva

Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences

Email: igorfed@iomc.ras.ru
Rússia, Nizhny Novgorod

E. Baranov

Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences

Email: igorfed@iomc.ras.ru
Rússia, Nizhny Novgorod

I. Fedushkin

Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences

Autor responsável pela correspondência
Email: igorfed@iomc.ras.ru
Rússia, Nizhny Novgorod

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2. Scheme 1.

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3. Scheme 2.

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4. Fig. 1. 1H NMR spectrum of compound II (400 MHz, C4D8O, 298 K).

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5. Fig. 2. Thermogravimetric analysis II.

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6. Fig. 3. Fragments of crystal packing II: along the crystallographic axis b (a); general view (b). Thermal ellipsoids of atoms of the anionic Ga—Cr complexes are shown with 30% probability. Hydrogen atoms, Ar substituents, and solvate molecules of toluene with THF are not shown. The index A denotes symmetrically equivalent atoms.

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7. Fig. 4. Superposition of two independent molecules of the ionic complex (Dpp-bian)GaCr(CO)5 in II. Thermal ellipsoids with 30% probability are shown. Hydrogen atoms are not shown. The numbering for the first and second molecules of (Dpp-bian)GaCr(CO)5 (with green and brown bonds), respectively, is given through the symbol “|”.

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8. Fig. 5. Visualization of voids in crystal II using the Mercury program [39].

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9. Rice. 6. 1H NMR spectrum of compound III (400 MHz, C4D8O, 298 K).

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10. Rice. 7. Thermogravimetric analysis III.

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11. Fig. 8. Asymmetric part of the 3D structure III (a) and fragments of the crystal packing of III in projection onto the plane b0c (b) and a0c (c). The index A denotes symmetrically equivalent atoms.

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12. Fig. 9. Visualization of voids in crystal III using the Mercury program [39].

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