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Copper Lanthanide Phosphonate Cages: Highly Symmetric {Cu3Ln9P6} and {Cu6Ln6P6} Clusters with C3v and D3h Symmetry.

Inorganic chemistry

Moreno Pineda E, Heesing C, Tuna F, Zheng YZ, McInnes EJ, Schnack J, Winpenny RE.
PMID: 26061255
Inorg Chem. 2015 Jul 06;54(13):6331-7. doi: 10.1021/acs.inorgchem.5b00649. Epub 2015 Jun 10.

Two families of copper lanthanide phosphonate clusters have been obtained through reaction of [Cu2(O2C(t)Bu)4(HO2C(t)Bu)2] and either Ln(NO3)3·nH2O or [Ln2(O2C(t)Bu)6(HO2C(t)Bu)6] and tert-butylphosphonic acid or an amino-functionalized phosphonic acid. The clusters, with general formula [Cu(MeCN)4][Cu3Ln9(μ3-OH)7(O3P(t)Bu)6(O2C(t)Bu)15] and [Cu6Ln6(μ3-OH)6(O3PC(NH2)Me2)6(O2C(t)Bu)12], were structurally characterized through...

Studies of a Large Odd-Numbered Odd-Electron Metal Ring: Inelastic Neutron Scattering and Muon Spin Relaxation Spectroscopy of Cr8 Mn.

Chemistry (Weinheim an der Bergstrasse, Germany)

Baker ML, Lancaster T, Chiesa A, Amoretti G, Baker PJ, Barker C, Blundell SJ, Carretta S, Collison D, Güdel HU, Guidi T, McInnes EJ, Möller JS, Mutka H, Ollivier J, Pratt FL, Santini P, Tuna F, Tregenna-Piggott PL, Vitorica-Yrezabal IJ, Timco GA, Winpenny RE.
PMID: 26748964
Chemistry. 2016 Jan 26;22(5):1779-88. doi: 10.1002/chem.201503431. Epub 2016 Jan 08.

The spin dynamics of Cr8 Mn, a nine-membered antiferromagnetic (AF) molecular nanomagnet, are investigated. Cr8 Mn is a rare example of a large odd-membered AF ring, and has an odd-number of 3d-electrons present. Odd-membered AF rings are unusual and...

An actinide Zintl cluster: a tris(triamidouranium)μ3-η2:η2:η2-heptaphosphanortricyclane and its diverse synthetic utility.

Angewandte Chemie (International ed. in English)

Patel D, Tuna F, McInnes EJ, Lewis W, Blake AJ, Liddle ST.
PMID: 24127241
Angew Chem Int Ed Engl. 2013 Dec 09;52(50):13334-7. doi: 10.1002/anie.201306492. Epub 2013 Oct 14.

No abstract available.

Synthesis, characterization, and reactivity of a uranium(VI) carbene imido oxo complex.

Angewandte Chemie (International ed. in English)

Lu E, Cooper OJ, McMaster J, Tuna F, McInnes EJ, Lewis W, Blake AJ, Liddle ST.
PMID: 24842784
Angew Chem Int Ed Engl. 2014 Jun 23;53(26):6696-700. doi: 10.1002/anie.201403892. Epub 2014 May 19.

We report the uranium(VI) carbene imido oxo complex [U(BIPM(TMS))(NMes)(O)(DMAP)2] (5, BIPM(TMS) = C(PPh2 NSiMe3)2; Mes = 2,4,6-Me3C6H2; DMAP = 4-(dimethylamino)pyridine) which exhibits the unprecedented arrangement of three formal multiply bonded ligands to one metal center where the coordinated heteroatoms...

Isolation of Elusive HAsAsH in a Crystalline Diuranium(IV) Complex.

Angewandte Chemie (International ed. in English)

Gardner BM, Balázs G, Scheer M, Wooles AJ, Tuna F, McInnes EJ, McMaster J, Lewis W, Blake AJ, Liddle ST.
PMID: 26510123
Angew Chem Int Ed Engl. 2015 Dec 07;54(50):15250-4. doi: 10.1002/anie.201508600. Epub 2015 Oct 28.

The HAsAsH molecule has hitherto only been proposed tentatively as a short-lived species generated in electrochemical or microwave-plasma experiments. After two centuries of inconclusive or disproven claims of HAsAsH formation in the condensed phase, we report the isolation and...

g-Engineering in Hybrid Rotaxanes To Create AB and AB2 Electron Spin Systems: EPR Spectroscopic Studies of Weak Interactions between Dissimilar Electron Spin Qubits.

Angewandte Chemie (International ed. in English)

Fernandez A, Moreno Pineda E, Muryn CA, Sproules S, Moro F, Timco GA, McInnes EJ, Winpenny RE.
PMID: 26224489
Angew Chem Int Ed Engl. 2015 Sep 07;54(37):10858-61. doi: 10.1002/anie.201504487. Epub 2015 Jul 24.

Hybrid [2]rotaxanes and pseudorotaxanes are reported where the magnetic interaction between dissimilar spins is controlled to create AB and AB2 electron spin systems, allowing independent control of weakly interacting S=${{ 1/2 }}$ centers.

Age-Associated Memory Impairment.

Current treatment options in neurology

McEntee WJ, Larrabee GJ.
PMID: 11096738
Curr Treat Options Neurol. 2000 Jan;2(1):73-80. doi: 10.1007/s11940-000-0025-y.

At present, there is no formally approved or generally accepted treatment for age-associated memory impairment (AAMI). Since 1991, when regulatory agencies took a cautious stance on pharmacologic treatments for AAMI, there have been no clinical drug treatment trials for...

Supertetrahedral decametallic Ni(II) clusters directed by micro(6)-tris-alkoxides.

Chemical communications (Cambridge, England)

Shaw R, Tidmarsh IS, Laye RH, Breeze B, Helliwell M, Brechin EK, Heath SL, Murrie M, Ochsenbein S, Gudel HU, McInnes EJ.
PMID: 15179493
Chem Commun (Camb). 2004 Jun 21;(12):1418-9. doi: 10.1039/b403876b. Epub 2004 May 17.

We report the syntheses, structures and magnetic properties of two decametallic Ni(II) clusters with unprecedented supertetrahedral cores, stabilised by the (hitherto unobserved) micro(6)-coordination modes of the tris-alkoxides [MeC(CH(2)O)(3)](3-) and [C(6)H(9)O(3)](3-).

Magnetic and optical studies on an S = 6 ground-state cluster [Cr12O9(OH)3(O2CCMe3)15]: determination of, and the relationship between, single-ion and cluster spin Hamiltonian parameters.

Inorganic chemistry

Collison D, Murrie M, Oganesyan VS, Piligkos S, Poolton NR, Rajaraman G, Smith GM, Thomson AJ, Timko GA, Wernsdorfer W, Winpenny RE, McInnes EJ.
PMID: 12924901
Inorg Chem. 2003 Aug 25;42(17):5293-303. doi: 10.1021/ic034541b.

The dodecametallic Cr(III) cluster [Cr(12)O(9)(OH)(3)(O(2)CCMe(3))(15)] has a ground spin state of S = 6 characterized by the spin Hamiltonian parameters g(ZZ)() = 1.965, g(XX)() = g(YY)() = 1.960, D(S=)()(6) = +0.088 cm(-)(1), and E(S=)()(6) = 0 (where D and...

A crystallographic, EPR and theoretical study of the Jahn-Teller distortion in [CuTp2] (Tp- = tris[pyrazol-1-yl]hydridoborate).

Dalton transactions (Cambridge, England : 2003)

Kilner CA, McInnes EJ, Leech MA, Beddard GS, Howard JA, Mabbs FE, Collison D, Bridgeman AJ, Halcrow MA.
PMID: 15356718
Dalton Trans. 2004 Jan 21;(2):236-43. doi: 10.1039/b312426f. Epub 2003 Dec 04.

Crystals of the title compound (1) contain two independent, centrosymmetric half-molecules per asymmetric unit. While both of these show Jahn-Teller elongated six-coordinate geometries, the lengths of the elongated Cu-N bonds in the two molecules differ by 0.117(2) A at...

Antisymmetric exchange in two tricopper(II) complexes containing a [Cu3(micro3-OMe)]5+ core.

Dalton transactions (Cambridge, England : 2003)

Liu X, de Miranda MP, McInnes EJ, Kilner CA, Halcrow MA.
PMID: 15356742
Dalton Trans. 2004 Jan 07;(1):59-64. doi: 10.1039/b311980g. Epub 2003 Nov 14.

Reaction of CuX2(X-=Cl- or Br-) with 2 molar equivalents of 3[5]-(2,4,6-trimethylphenyl)pyrazole (HpzMes) in MeOH in the presence of NaOH yields [Cu3X(HpzMes)2(micro-pzMes)3(micro3-OMe)]X (X-=Cl- or Br-). Crystal structures of these compounds show almost identical triangles of Cu(II) ions, centred by a...

Tuning intermolecular magnetic exchange interactions in the solids C(x)F(2)(x)(CNSSS)(2)(AsF(6))(2): structural, EPR, and magnetic characterization of dimeric (x = 2, 4) diradicals.

Inorganic chemistry

Decken A, Ebdah M, Kowalczyk RM, Landee CP, McInnes EJ, Passmore J, Shuvaev KV, Thompson LK.
PMID: 17718477
Inorg Chem. 2007 Sep 17;46(19):7756-66. doi: 10.1021/ic062475i. Epub 2007 Aug 24.

A series of diradical containing salts CxF2x(CNSSS)2(**2+0(AsF6-)2 {x = 2, 1[AsF6]2; x = 3, 3[AsF6]2; x = 4, 2[AsF6]2} have been prepared. 1[AsF6]2 and 2[AsF6]2 were fully characterized by X-ray, variable-temperature magnetic susceptibility, and solid-state EPR measurements, further allowing...

Showing 1 to 12 of 152 entries