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Showing 1 to 12 of 219 entries
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Atom-Precise Organometallic Zinc Clusters.

Angewandte Chemie (International ed. in English)

Banh H, Dilchert K, Schulz C, Gemel C, Seidel RW, Gautier R, Kahlal S, Saillard JY, Fischer RA.
PMID: 26846901
Angew Chem Int Ed Engl. 2016 Mar 01;55(10):3285-9. doi: 10.1002/anie.201510762. Epub 2016 Feb 05.

The bottom-up synthesis of organometallic zinc clusters is described. The cation {[Zn10](Cp*)6 Me}(+) (1) is obtained by reacting [Zn2 Cp*2] with [FeCp2][BAr4 (F)] in the presence of ZnMe2. In the presence of suitable ligands, the high reactivity of 1...

A Combination of Leucine, Metformin, and Sildenafil Treats Nonalcoholic Fatty Liver Disease and Steatohepatitis in Mice.

International journal of hepatology

Bruckbauer A, Banerjee J, Fu L, Li F, Cao Q, Cui X, Wu R, Shi H, Xue B, Zemel MB.
PMID: 28042486
Int J Hepatol. 2016;2016:9185987. doi: 10.1155/2016/9185987. Epub 2016 Nov 30.

Sirt1, AMPK, and eNOS modulate hepatic energy metabolism and inflammation and are key players in the development of NASH. L-leucine, an allosteric Sirt1 activator, synergizes with low doses of metformin or sildenafil on the AMPK-eNOS-Sirt1 pathway to reverse mild...

The intermetalloid cluster [(Cp*AlCu)6H4], embedding a Cu6 core inside an octahedral Al6 shell: molecular models of Hume-Rothery nanophases.

Angewandte Chemie (International ed. in English)

Ganesamoorthy C, Weßing J, Kroll C, Seidel RW, Gemel C, Fischer RA.
PMID: 24962074
Angew Chem Int Ed Engl. 2014 Jul 21;53(30):7943-7. doi: 10.1002/anie.201402149. Epub 2014 Jun 24.

Defined molecular models for the surface chemistry of Hume-Rothery nanophases related to catalysis are very rare. The Al-Cu intermetalloid cluster [(Cp*AlCu)6H4] was selectively obtained from the clean reaction of [(Cp*Al)4] and [(Ph3PCuH)6]. The stronger affinity of Cp*Al towards Cu...

Oxidation of Ni-ECp* Complexes: Stable Open-Shell Ni(I) Cations [Ni(ECp*)n(PPh3)(4-n)](+) (n = 2, 4; E = Al, Ga).

Inorganic chemistry

Kim J, Halbherr M, Gemel C, Fischer RA.
PMID: 26440980
Inorg Chem. 2015 Oct 19;54(20):9675-7. doi: 10.1021/acs.inorgchem.5b01215. Epub 2015 Oct 06.

Uncommon Ni(I) cationic complexes were synthesized by treating [Ni(ECp*)2(PPh3)2] (E = Al, Ga; Cp* = pentamethylcyclopentadienyl) with 1 equiv of [FeCp2][BAr4(F)]. All compounds have been prepared readily in high yield. The paramagnetic compounds were characterized by single-crystal X-ray crystallography,...

Interaction between leucine and phosphodiesterase 5 inhibition in modulating insulin sensitivity and lipid metabolism.

Diabetes, metabolic syndrome and obesity : targets and therapy

Fu L, Li F, Bruckbauer A, Cao Q, Cui X, Wu R, Shi H, Xue B, Zemel MB.
PMID: 25999751
Diabetes Metab Syndr Obes. 2015 May 06;8:227-39. doi: 10.2147/DMSO.S82338. eCollection 2015.

PURPOSE: Leucine activates SIRT1/AMP-activated protein kinase (AMPK) signaling and markedly potentiates the effects of other sirtuin and AMPK activators on insulin signaling and lipid metabolism. Phosphodiesterase 5 inhibition increases nitric oxide-cGMP signaling, which in turn exhibits a positive feedback...

Insertion of organoindium carbenoids into rhodium halide bonds: revisiting a classic type of transition metal-group 13 metal bond formation.

Chemical communications (Cambridge, England)

Steinke T, Gemel C, Cokoja M, Winter M, Fischer RA.
PMID: 12772905
Chem Commun (Camb). 2003 May 07;(9):1066-7. doi: 10.1039/b301928d.

Insertion of the carbenoid group 13 metal species InCp* (Cp* = pentamethylcyclopentadienyl) and InC(SiMe3)3 into the Rh-Cl bonds of [[RhCp*Cl2]2] yields the new complexes [Cp*Rh(InCp*)3(Cl)2] 1 and [Cp*Rh(mu2-Cl)2(InC(SiMe3)3)3] 2, respectively, exhibiting novel cage-like intermetallic complexes with In-Cl-In bridges.

Effects of dairy intake on weight maintenance.

Nutrition & metabolism

Zemel MB, Donnelly JE, Smith BK, Sullivan DK, Richards J, Morgan-Hanusa D, Mayo MS, Sun X, Cook-Wiens G, Bailey BW, Van Walleghen EL, Washburn RA.
PMID: 18950508
Nutr Metab (Lond). 2008 Oct 24;5:28. doi: 10.1186/1743-7075-5-28.

BACKGROUND: To compare the effects of low versus recommended levels of dairy intake on weight maintenance and body composition subsequent to weight loss.DESIGN AND METHODS: Two site (University of Kansas-KU; University of Tennessee-UT), 9 month, randomized trial. Weight loss...

Stereospecific and stereodivergent construction of quaternary carbon centers through switchable directed/nondirected allylic substitution.

Angewandte Chemie (International ed. in English)

Breit B, Demel P, Studte C.
PMID: 15258936
Angew Chem Int Ed Engl. 2004 Jul 19;43(29):3786-9. doi: 10.1002/anie.200453991.

No abstract available.

Methylgallium as a terminal ligand in [(Cp*Ga)4Rh(GaCH3)]+.

Angewandte Chemie (International ed. in English)

Cadenbach T, Gemel C, Zacher D, Fischer RA.
PMID: 18386270
Angew Chem Int Ed Engl. 2008;47(18):3438-41. doi: 10.1002/anie.200705031.

No abstract available.

The [Ga2(C5Me5)]+ ion: bipyramidal double-cone structure and weakly coordinated, monovalent Ga+.

Angewandte Chemie (International ed. in English)

Buchin B, Gemel C, Cadenbach T, Schmid R, Fischer RA.
PMID: 16355431
Angew Chem Int Ed Engl. 2006 Feb 06;45(7):1074-6. doi: 10.1002/anie.200503028.

No abstract available.

Group 13 ligand supported heavy-metal complexes: first structural evidence for gallium-lead and gallium-mercury bonds.

Chemistry (Weinheim an der Bergstrasse, Germany)

Prabusankar G, Gemel C, Winter M, Seidel RW, Fischer RA.
PMID: 20391574
Chemistry. 2010 May 25;16(20):6041-7. doi: 10.1002/chem.200903330.

Heavy-metal complexes of lead and mercury stabilized by Group 13 ligands were derived from the oxidative addition of Ga(ddp) (ddp=HC(CMeNC(6)H(3)-2,6-iPr(2))(2), 2-diisopropylphenylamino-4-diisopropyl phenylimino-2-pentene) with corresponding metal precursors. The reaction of Me(3)PbCl and Ga(ddp) afforded compound [{(ddp)Ga(Cl)}PbMe(3)] (1) composed of Ga-Pb(IV)...

[Sn17{GaCl(ddp)}4]: a high-nuclearity metalloid tin cluster trapped by electrophilic gallium ligands.

Angewandte Chemie (International ed. in English)

Prabusankar G, Kempter A, Gemel C, Schröter MK, Fischer RA.
PMID: 18720353
Angew Chem Int Ed Engl. 2008;47(38):7234-7. doi: 10.1002/anie.200802470.

No abstract available.

Showing 1 to 12 of 219 entries