Výsledky vyhledávání - "Andrew J. Thorne"

Synthesis and characterisation of some mesogenic mononuclear and multinuclear phthalocyanines

Autor: Andrew J. Thorne, Geoffrey C. Bryant, Michael J. Cook, Timothy G. Ryan

Publikováno v: Tetrahedron. 52:809-824

Octa-substituted phthalocyanines carrying either one or two hydroxyalkyl chains have been synthesised and their liquid crystalline behaviour characterised by polarised light microscopy and differential scanning calorimetry. The compounds form discoti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b92cb359db4c319b93188335d863c98
https://doi.org/10.1016/0040-4020(95)00927-2

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Structural study of spin coated and LB films of monomeric and oligomeric phthalocyanines

Autor: SD Haslam, Timothy G. Ryan, Michael J. Cook, Carmine Ruggiero, Geoffrey C. Bryant, Andrew J. Thorne, Robert M. Richardson

Publikováno v: Thin Solid Films. 243:316-324

The Langmuir monolayer and Langmuir-Blodgett (LB) deposition behaviour of asymmetrically substituted 1,4-bis(6-hydroxyhexyl)−8,11,15,18,22,25-hexa-octylphthalocyanine (1) and a phthalocyanine dimer (2) and trimer (3) have been investigated. The mat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f944c1d7c2e8ea2ee3bd6bcfe94e00a3
https://doi.org/10.1016/0040-6090(93)04074-3

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Novel two-coordinate germanium(II) arylamides: Ge(NHAr)2, ArN[Ge(NHAr)]2(µ-NAr) and [Ge(µ-NAr)]22, and the X-ray structures of 2 and Sn(NHAr)2(Ar = C6H2But3-2,4,6)

Autor: Andrew J. Thorne, Michael F. Lappert, Peter B. Hitchcock

Publikováno v: J. Chem. Soc., Chem. Commun.. :1587-1589

Depending on reaction conditions, treatment of GeCl2(1,4-dioxane) with [Li(µ-NHAr)(L)]2(L = OEt2 or OC4H8) yields Ge(NHAr)21 or the first binuclear group 14 element(II) amides [Ge(µ-NAr)]22 or ArN[Ge(NHAr)]2(µ-NAr)3; X-ray structural data are pres

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c2e9a5af835ba6a6436d06206dea0163
https://doi.org/10.1039/c39900001587

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Liquid crystalline polymeric phthalocyanines

Autor: Timothy G. Ryan, Geoffrey C. Bryant, Michael J. Cook, Andrew J. Thorne

Publikováno v: Journal of the Chemical Society, Chemical Communications. :467

The first examples of phthalocyanine linear mainchain polymers showing liquid crystal properties are described.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b1c64908132d17caa714fab759de447b
https://doi.org/10.1039/c39950000467

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Discotic liquid-crystal behaviour of some multinuclear phthalocyanine derivatives

Autor: Simon O. Haslam, Michael J. Cook, Andrew J. Thorne, Timothy G. Ryan, Robert M. Richardson, Geoffrey C. Bryant

Publikováno v: Journal of Materials Chemistry. 4:209

The liquid-crystal properties are reported for a series of multinuclear phthalocyanines containing either two or three macrocyclic ring units. All but one of the compounds, the ‘dimer’ with the shortest spacer group between the two rings, exhibit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e31f29e96104dd716f6d4f58a522b40
https://doi.org/10.1039/jm9940400209

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The molecular structure of a germene GeR2 (r = CH(Sime3)2) by gas electron diffraction; self-consistent-field molecular orbital calculations on stannene, SnH2, and distannene, Sn2H4

Autor: Arne Haaland, Michael F. Lappert, Birgitte E. R. Schilling, Torgny Fjeldberg, Hans V. Volden, Andrew J. Thorne

Publikováno v: Journal of Organometallic Chemistry. 276:c1-c4

Ge[CH(SiMe 3 ) 2 ] 2 is a V-shaped monomer in the gas phase at ca. 430 K, with GeC 204(2) pm and angle CGeC = 107(2)°; ab initio MO calculations on Sn 2 H 4 , with better than double ζ basis, indicate that (i) a non-planar trans -folded conforma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b91afe114595bb3b0f4818d8ac7e062c
https://doi.org/10.1016/0022-328x(84)80610-5

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Subvalent Group 4B metal alkyls and amides. Part 9. Germanium and tin alkene analogues, the dimetallenes M2R4[M = Ge or Sn, R = CH(SiMe3)2]: X-ray structures, molecular orbital calculations for M2H4, and trends in the series M2R′4[M = C, Si, Ge, or Sn; R′= R, Ph, C6H2Me3-2,4,6, or C6H3Et2-2,6]

Autor: Birgitte E. R. Schilling, Michael F. Lappert, K. Mark Thomas, Arne Haaland, Torgny Fjeldberg, Peter B. Hitchcock, Andrew J. Thorne, David E. Goldberg

Publikováno v: J. Chem. Soc., Dalton Trans.. :2387-2394

X-Ray structures of the isomorphous centrosymmetric crystalline Ge2R4 and Sn2R4[R = CH(SiMe3)2] reveal a trans-folded C2h M2C4 framework, with a fold angle θ of 32° for M = Ge and 41° for M = Sn, but no twist of the MC2 planes about the M–M axis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89944fa4fbeb6ed64a2926c92793ab0f
https://doi.org/10.1039/dt9860002387

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Carbene complexes

Autor: Nicholas J. Taylor, Michael F. Lappert, Sunday A. Thomas, Andrew J. Thorne, Peter B. Hitchcock, Arthur J. Carty

Publikováno v: Journal of Organometallic Chemistry. 315:27-44

The first bis(aryloxo)-main Group 14 metal(II)-transition-metal complexes eq -[Fe(CO) 4 ){M(OAr) 2 }] ( eq - denotes equatorial, Ar = C 6 H 2 Bu t 2 -2,6-Me-4, and M = Ge (II) or Sn (III)) have been prepared, from [Fe 2 (CO) 9 ] and the appropriate a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd82f6ccac4fdde04a989e66ee116378
https://doi.org/10.1016/0022-328x(86)80408-9

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The molecular structure of gaseous bis(trimethylsilyl)methane, CH2(Si(CH3)3)2, as determined by electron diffraction: An unusually large SiCSi angle

Autor: Ragnhild Seip, Andrew J. Thorne, Torgny Fjeldberg, Michael F. Lappert

Publikováno v: Journal of Molecular Structure. 99:295-302

Steric interaction between trimethylsilyl groups in the title compound is relieved by opening the SiCSi angle (123.2° (9)), by stretching the central CSi bonds slightly (1.889-(4) A) and by a torsional displacement of the methyl groups from stagg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::121f819316589414e21e94830753b0c0
https://doi.org/10.1016/0022-2860(83)90032-7

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The molecular structure of gaseous, monomeric bis(trimethylsilyl)methyl-lithium, LiCH(Si(CH3)3)2, as determined by electron diffraction

Autor: Michael F. Lappert, Andrew J. Thorne, Torgny Fjeldberg

Publikováno v: Journal of Molecular Structure. 127:95-105

Gaseous bis(trimethylsilyl)methyl-lithium, LiCH(SiMe3)2, has been studied by electron diffraction at a nozzle temperature of ca. 413 K. The diffraction data are consistent with a model consisting of monomers only, although small percentages of dimers

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a1076e142a681e8899404ab014309a80
https://doi.org/10.1016/0022-2860(85)80153-8

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