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Showing 13 to 24 of 487 entries
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Extended polymorphism in copper(II) imidazolate polymers: a spectroscopic and XRPD structural study.

Inorganic chemistry

Masciocchi N, Bruni S, Cariati E, Cariati F, Galli S, Sironi A.
PMID: 11681902
Inorg Chem. 2001 Nov 05;40(23):5897-905. doi: 10.1021/ic010384+.

Copper(II) bisimidazolate affords five different polymorphs; of these, one was structurally characterized 40 years ago by standard single-crystal X-ray diffraction (Jarvis, J. A. J.; Wells, A. F. Acta Crystallogr. 1960, 13, 1027), while the remaining four, selectively prepared as...

Synthesis and X-ray characterization of the phosphido-carbonyl cluster anions.

Inorganic chemistry

Ciani G, Sironi A, Martinengo S, Garlaschelli L, Della Pergola R, Zanello P, Laschi F, Masciocchi N.
PMID: 11466048
Inorg Chem. 2001 Jul 30;40(16):3905-11. doi: 10.1021/ic0007355.

The [Co(9)P(CO)(21)](2)(-) anion has been isolated from the products of the reaction between Na[Co(CO)(4)] and PCl(5) in tetrahydrofuran at reflux. The structure of the cluster anion [Co(9)P(CO)(21)](2)(-) in its tetraphenylphosphonium salt has been elucidated by X-ray analysis. The crystals...

Mixed Ruthenium-Rhodium Carbonyl Cluster Complexes. Synthesis of the Anions [Ru(3)Rh(CO)(13)](-) and [RuRh(3)(CO)(12)](-) and Crystal Structures of Their [N(PPh(3))(2)](+) Salts(1).

Inorganic chemistry

Fumagalli A, Bianchi M, Malatesta MC, Ciani G, Moret M, Sironi A.
PMID: 11670340
Inorg Chem. 1998 Mar 23;37(6):1324-1328. doi: 10.1021/ic970862+.

The new anion [Ru(3)Rh(CO)(13)](-) (1) has been obtained by reaction of [Rh(CO)(4)](-) ([N(PPh(3))(2)](+) or [PPh(4)](+) salt) with Ru(3)(CO)(12); [RuRh(3)(CO)(12)](-) (2) has been derived by oxidative degradation of [RuRh(4)(CO)(12)](2-). Their salts, [N(PPh(3))(2)][Ru(3)Rh(CO)(13)] (I) and [N(PPh(3))(2)][RuRh(3)(CO)(12)] (II), were characterized by single-crystal...

Bose-Einstein condensation of potassium atoms by sympathetic cooling.

Science (New York, N.Y.)

Modugno G, Ferrari G, Roati G, Brecha RJ, Simoni A, Inguscio M.
PMID: 11641466
Science. 2001 Nov 09;294(5545):1320-2. doi: 10.1126/science.1066687. Epub 2001 Oct 18.

We report on the Bose-Einstein condensation of potassium atoms, whereby quantum degeneracy is achieved by sympathetic cooling with evaporatively cooled rubidium. Because of the rapid thermalization of the two different atoms, the efficiency of the cooling process is high....

Electron transfer and CO addition to polynitrido cobalt carbonyl clusters: parallel pathways for conversion of the [Co10N2(CO)19]4- anion to the novel [Co11N2(CO)21]3- anion.

Inorganic chemistry

Fumagalli A, Ulivieri P, Costa M, Crispu O, Della Pergola R, Fabrizi de Biani F, Laschi F, Zanello P, Macchi P, Sironi A.
PMID: 15018536
Inorg Chem. 2004 Mar 22;43(6):2125-31. doi: 10.1021/ic035133a.

The redox aptitude of the dinitrido anion [Co10N2(CO)19]4- has been tested from both chemical and electrochemical points of view, together with its reactivity toward CO that induces disproportionation. In any case, through a remarkable overlapping of intermediate steps, the...

Coordination frameworks containing the pyrimidin-4-olate ligand. Synthesis, thermal, magnetic, and ab initio XRPD structural characterization of nickel and zinc derivatives.

Inorganic chemistry

Barea E, Navarro JA, Salas JM, Masciocchi N, Galli S, Sironi A.
PMID: 14731009
Inorg Chem. 2004 Jan 26;43(2):473-81. doi: 10.1021/ic0351287.

Extended coordination frameworks containing the pyrimidin-4-olate ligand (4-pymo) and Zn(II) and Ni(II) metal ions have been obtained by solid state reactions and have been fully characterized by spectroscopic, thermal, and magnetic measurements and by ab initio XRPD. The reaction...

Luminescent hydrido-carbonyl clusters of rhenium containing bridging 1,2-diazine ligands.

Inorganic chemistry

Panigati M, Donghi D, D'Alfonso G, Mercandelli P, Sironi A, D'Alfonso L.
PMID: 17173450
Inorg Chem. 2006 Dec 25;45(26):10909-21. doi: 10.1021/ic061467z.

The reaction of the electronically unsaturated (56 valence electrons, ve) tetrahedral cluster [Re4(mu3-H)4(CO)12] (1) with pyridazine (pydz) gives as the main initial product the tetranuclear cluster [Re4(mu-H)4(mu-pydz)(pydz)2(CO)12] (2a), with 64 ve and four hydrogen-bridged metal-metal interactions, with a spiked-triangle...

Cryptochrome, phytochrome, and anthocyanin production.

Plant physiology

Mancinelli AL, Rossi F, Moroni A.
PMID: 16668301
Plant Physiol. 1991 Aug;96(4):1079-85. doi: 10.1104/pp.96.4.1079.

Anthocyanin production in cabbage (Brassica oleracea L.) and tomato (Lycopersicon esculentum Mill.) seedlings exposed to prolonged irradiations was studied under conditions that allowed discrimination, within certain limits, between the contribution of cryptochrome and phytochrome in the photoregulation of the...

Staggered to eclipsed conformational rearrangement of [Co2(CO)6(PPh3)2] in the solid state: an X-ray diffraction study at high pressure and low temperature.

Angewandte Chemie (International ed. in English)

Casati N, Macchi P, Sironi A.
PMID: 16278912
Angew Chem Int Ed Engl. 2005 Dec 02;44(47):7736-9. doi: 10.1002/anie.200502241.

No abstract available.

On the therapeutic effects of the suboccipital injection of catatonic schizophrenic CSF into the cistern of epileptics.

Rassegna di neuropsichiatria e scienze affini

POLONI A.
PMID: 18876449
Rass Neuropsichiatr. 1948 Jul-Aug;2(4):324-7.

No abstract available.

Polyfunctional inorganic-organic hybrid materials: an unusual kind of NLO active layered mixed metal oxalates with tunable magnetic properties and very large second harmonic generation.

Journal of the American Chemical Society

Cariati E, Macchi R, Roberto D, Ugo R, Galli S, Casati N, Macchi P, Sironi A, Bogani L, Caneschi A, Gatteschi D.
PMID: 17616190
J Am Chem Soc. 2007 Aug 01;129(30):9410-20. doi: 10.1021/ja0710712. Epub 2007 Jul 07.

Mixed M(II)/M(III) metal oxalates, as "stripes" connected through strong hydrogen bonding by para-dimethylaminobenzaldeide (DAMBA) and water, form an organic-inorganic 2D network that enables segregation in layers of the cationic organic NLO-phore trans-4-(4-dimethylaminostyryl)-1-methylpyridinium, [DAMS+]. The crystalline hybrid materials obtained have...

Structural and thermodiffractometric analysis of coordination polymers. Part I: tin derivatives of the Bim ligand [Bim = Bis(1-imidazolyl)methane]).

Inorganic chemistry

Masciocchi N, Pettinari C, Alberti E, Pettinari R, Nicola CD, Albisetti AF, Sironi A.
PMID: 18001118
Inorg Chem. 2007 Dec 10;46(25):10491-500. doi: 10.1021/ic701530c. Epub 2007 Nov 15.

New polynuclear coordination species containing the ditopic bis(1-imidazolyl)methane (Bim) ligand have been prepared as microcrystalline powders and structurally characterized by ab initio X-ray powder diffraction methods. [Bim(Me2SnCl2)]n (1), [Bim(nBu2SnCl2)]n (3), [Bim(Ph2SnCl2)]n (4), [Bim(MeSnCl3)]n (5), and [Bim(PhSnCl3)]n (6) all contain...

Showing 13 to 24 of 487 entries