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Showing 13 to 24 of 262 entries
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The cationic cluster Grignard [{MgCl(thf)2}3(mu3-C3H5)2]+.

Chemical communications (Cambridge, England)

Layfield RA, Bullock TH, García F, Humphrey SM, Schüler P.
PMID: 16767268
Chem Commun (Camb). 2006 May 21;(19):2039-41. doi: 10.1039/b602059c. Epub 2006 Apr 11.

The synthesis and structure of [{MgCl(thf)2}3(mu3-C3H5)2]2[Mg(C3H5)4], which contains both a cationic cluster Grignard and a tetraorganomagnesiate dianion, are reported.

False positive computed tomography findings in aortic dissection.

Heart, lung & circulation

Shanmugam G, McKeown J, Bayfield M, Hendel N, Hughes C.
PMID: 16352192
Heart Lung Circ. 2004 Jun;13(2):184-7. doi: 10.1016/j.hlc.2004.02.003.

Dissection is the commonest acute catastrophe involving the aorta. Computed tomography (CT) is increasingly used in evaluating patients with suspected aortic dissection. Occasionally normal anatomic structures may be misconstrued as pathologic due of lack of familiarity with anatomical variations....

Integrated procedure for giant right coronary aneurysm with fistula and atrial fibrillation--coronary grafting, fistula obliteration and radiofrequency maze.

Interactive cardiovascular and thoracic surgery

Shanmugam G, Bayfield M.
PMID: 17670206
Interact Cardiovasc Thorac Surg. 2004 Mar;3(1):168-70. doi: 10.1016/S1569-9293(03)00268-8.

Giant coronary artery aneurysm (CAA) with fistula is a rare entity. Surgical treatment is often concomitant to treating obstructing coronary lesions. We report the successful management of a giant right CAA with fistulisation into the right atrium. By coincidence,...

Theoretical study of the dynamics of F+alkanethiol self-assembled monolayer hydrogen-abstraction reactions.

The Journal of chemical physics

Layfield JP, Troya D.
PMID: 20387933
J Chem Phys. 2010 Apr 07;132(13):134307. doi: 10.1063/1.3364858.

The dynamics of the reactions of F atoms with octanethiol self-assembled monolayers (SAMs) has been studied using theoretical methods. F+SAM classical trajectories have been propagated directly using a quantum-mechanics (QM)/molecular-mechanics scheme in which the QM portion is described using...

Squamous differentiation and cytokeratin expression in an osteosarcoma: a case report and review of the literature.

Clinical medicine. Pathology

Layfield LJ, Emerson L, Crim JR, Randall L.
PMID: 21876652
Clin Med Pathol. 2008;1:55-9. doi: 10.4137/cpath.s582. Epub 2008 Mar 18.

Cytokeratin expression has been documented in a variety of sarcomas including synovial sarcomas, epithelioid sarcomas, Ewing's sarcomas and, rarely, osteosarcomas. In osteosarcomas immunohistochemically shown to expression cytokeratins, a component of epithelioid cells is generally present. These epithelioid cytokeratin positive...

Identifying changes in the synaptic proteome of cirrhotic alcoholic superior frontal gyrus.

Current neuropharmacology

Etheridge N, Mayfield RD, Harris RA, Dodd PR.
PMID: 21886576
Curr Neuropharmacol. 2011 Mar;9(1):122-8. doi: 10.2174/157015911795017164.

Hepatic complications are a common side-effect of alcoholism. Without the detoxification capabilities of the liver, alcohol misuse induces changes in gene and protein expression throughout the body. A global proteomics approach was used to identify these protein changes in...

Comparative Efficiency of Plating Media for the Isolation of Shigella Dysenteriae.

American journal of public health and the nation's health

Mayfield CR, Gober M.
PMID: 18015418
Am J Public Health Nations Health. 1941 Apr;31(4):363-8. doi: 10.2105/ajph.31.4.363.

No abstract available.

Molecular simulations of the structure and dynamics of water confined between alkanethiol self-assembled monolayer plates.

The journal of physical chemistry. B

Layfield JP, Troya D.
PMID: 21466175
J Phys Chem B. 2011 Apr 28;115(16):4662-70. doi: 10.1021/jp1120178. Epub 2011 Apr 05.

We have studied structural and dynamic properties of water confined between hydrophobic alkanethiol self-assembled monolayers (SAMs) using molecular-dynamics simulations. After quantifying the hydrophobic nature of the SAM surfaces via contact-angle calculations involving water droplets, we analyze the effect that...

Carbene rearrangements in three-coordinate N-heterocyclic carbene complexes of cobalt(II) bis(trimethylsilyl)amide.

Inorganic chemistry

Day BM, Pal K, Pugh T, Tuck J, Layfield RA.
PMID: 25203858
Inorg Chem. 2014 Oct 06;53(19):10578-84. doi: 10.1021/ic501677k. Epub 2014 Sep 09.

The synthesis and molecular structures of the cobalt(II) N-heterocyclic carbene (NHC) complexes [(NHC)Co{N(SiMe3)2}2], where NHC = 1,3-bis(diisopropylphenyl)imidazolylidene (IPr) (6), 1,3-bis(mesityl)imidazolylidene (IMes) (7), and 1,3-bis(tert-butyl)imidazol-2-ylidene (I(t)Bu) (8), are reported. Complexes 6-8 are rare examples of three-coordinate cobalt NHC complexes. The...

Fast magnetic relaxation in an octahedral dysprosium tetramethyl-aluminate complex.

Dalton transactions (Cambridge, England : 2003)

König SN, Chilton NF, Maichle-Mössmer C, Pineda EM, Pugh T, Anwander R, Layfield RA.
PMID: 24121786
Dalton Trans. 2014 Feb 28;43(8):3035-8. doi: 10.1039/c3dt52337c.

Ab initio calculations on the octahedral dysprosium aluminate complex [Dy(AlMe4)3] (1) predict weak SMM properties. Dynamic magnetic susceptibility measurements on 1 confirm the theoretical predictions, revealing fast relaxation of the magnetization via quantum tunnelling.

Transmetalation of chromocene by lithium-amide, -phosphide, and -arsenide nucleophiles.

Inorganic chemistry

Scheuermayer S, Tuna F, Pineda EM, Bodensteiner M, Scheer M, Layfield RA.
PMID: 23477621
Inorg Chem. 2013 Apr 01;52(7):3878-83. doi: 10.1021/ic3025815. Epub 2013 Mar 11.

The pnictogen-centered nucleophiles LiE(SiMe3)2 (E = N, P, or As) substitute a cyclopentadienide ligand of chromocene (Cp2Cr), with elimination of lithium cyclopentadienide, to give the series of pnictogen-bridged compounds [(μ:η(2):η(5)-Cp)Cr{μ-N(SiMe3)2}2Li] (1) and [(η(5)-Cp)Cr{μ-E(SiMe3)2}]2, with E = P (2) or...

Activation of C-H bonds by rare-earth metallocene-butyl complexes.

Chemical communications (Cambridge, England)

Grindell R, Day BM, Guo FS, Pugh T, Layfield RA.
PMID: 28832031
Chem Commun (Camb). 2017 Sep 05;53(72):9990-9993. doi: 10.1039/c7cc05597h.

The stable metallocene-butyl complexes [(Cp

Showing 13 to 24 of 262 entries