نتایج جستجو برای: 106 samples including deans

تعداد نتایج: 1360996  

Journal: :Chemical communications 2013
Wei Zheng Qun Luo Yu Lin Yao Zhao Xiuli Wang Zhifeng Du Xiang Hao Yang Yu Shuang Lü Liyun Ji Xianchan Li Ling Yang Fuyi Wang

The complexation with organoruthenium fragments confers 4-anilinoquinazoline pharmacophores with higher potential for inducing cellular apoptosis while the highly inhibitory activity of 4-anilinoquinazolines against EGFR and the reactivity of the ruthenium centre to 9-ethylguanine are well preserved.

2011
Dai Oyama Kazumi Yuzuriya Tsugiko Takase

The asymmetric unit of the title compound, [Ru(C(13)H(9)N(3))(C(15)H(11)N(3))(H(2)O)](PF(6))(2)·1.5C(3)H(6)O, consists of two crystallographically independent Ru(II) complexes. Each complex is approximately octa-hedral with the Ru(II) atom bound by an N,N'-coordinated 2-(2-pyrid-yl)-1,8-naphthyridine (pynp) ligand, a meridional 2,2':6',2''-terpyridine (tpy) ligand and one aqua ligand. The tpy l...

Journal: :Dalton transactions 2014
Allan Young Mark A Vincent Ian H Hillier Jonathan M Percy Tell Tuttle

A DFT investigation into the mechanism for the decomposition of Grubbs 2nd generation pre-catalyst (2) in the presence of methanol, is presented. Gibbs free energy profiles for decomposition of the pre-catalyst (2) via two possible mechanisms were computed. We predict that decomposition following tricyclohexylphosphane dissociation is most favoured compared to direct decomposition of the pre-ca...

Journal: :The Journal of organic chemistry 2001
L Zhang C W Borysenko T R Lee

The kinetics of the ruthenium-promoted cis,cis to trans,trans isomerization of 1,1,2,2,5,5,6,6-octamethyl-1,2,5,6-tetrasilacycloocta-3,7-diene were investigated. Incubation of a ruthenium alkylidene complex, (Cy(3)P)RuCl(2)(==CHPh)Ru(p-cymene)Cl(2), in CD(2)Cl(2) for 5 days at 40 degrees C afforded a catalytically active ruthenium species that was shown to be responsible for promoting the isome...

Journal: :Inorganic chemistry 2010
Onduru S Odongo Marco M Allard H Bernhard Schlegel John F Endicott

The 77 K emission spectral maxima of bis(bipyridine)ruthenium(II) complexes are found to approach a limit at energies below about 14,000 cm(-1). There is also evidence for related low-energy excited-state limits in some other classes of ruthenium polypyridyl complexes. The shapes of the vibronic sidebands found in these limits differ from those of complexes that emit at higher energies. These l...

Journal: :Journal of the American Chemical Society 2013
Hiroshi Miyazaki Myles B Herbert Peng Liu Xiaofei Dong Xiufang Xu Benjamin K Keitz Thay Ung Garik Mkrtumyan K N Houk Robert H Grubbs

The Z-selective ethenolysis activity of chelated ruthenium metathesis catalysts was investigated with experiment and theory. A five-membered chelated catalyst that was successfully employed in Z-selective cross metathesis reactions has now been found to be highly active for Z-selective ethenolysis at low ethylene pressures, while tolerating a wide variety of functional groups. This phenomenon a...

Journal: :Journal of animal science 1999
S S Swanek J B Morgan F N Owens D R Gill C A Strasia H G Dolezal F K Ray

The objectives of these experiments were to determine 1) the effectiveness of supplemental vitamin D3 (VITD) on altering plasma and muscle calcium levels, 2) whether VITD supplementation improves Warner-Bratzler shear force (WBS) values of steaks from feedlot beef steers, and 3) the tenderness response curve of longissimus steaks from steers supplemented with VITD. In Exp. 1, 20 crossbred steer...

Journal: :Reproduction in domestic animals = Zuchthygiene 2017
S J Mason

Since the conclusion of data collation from previously published work, a further 352 inseminations using frozen-thawed dog semen by endoscopic-assisted transcervical insemination (EIU) have been performed by the author. Insemination was performed on the second day in which crenulation of the anterior vagina was detected in conjunction with a progesterone concentration of >10 ng/ml. All semen sa...

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