Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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CRYSTALLOGRAPHIC
COMMUNICATIONS

Volume 57| Part 2

ISSN: 2056-9890

February 2001 issue

Highlighted illustration

Cover illustration: This seven-coordinate W compound can be described as a 4:3 piano-stool arrangement, with the three carbonyl ligands forming the legs of the stool. The other four N and S atoms bonded to W form the distorted square base of the piano-stool. See Esterhuysen et al. [Acta Cryst. E57, m72-m74].

inorganic compounds

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Calcium nitride (Ca₂N), a redetermination

C. F. Baker, M. G. Barker and A. J. Blake

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Sodium tetrabromoaurate(III) dihydrate

R. Welter, H. Omrani and R. Vangelisti

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Tetraaquatrinitratoeuropium(III) dihydrate

T. Stumpf and M. Bolte

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Dieuropium(III) silicodimonophosphatediphosphate

J. Bennazha, A. Boukhari and E. M. Holt

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Rubidium zinc phosphate, RbZn₂(PO₄)(HPO₄)

L. J. Yule and W. T. A. Harrison

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metal-organic compounds

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Tetraaqua(nitromethane)potassium bromide monohydrate

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Bis(μ-N-butyl-N-ethyldithiocarbamato-S:S′)bis[(N-butyl-N-
ethyldithiocarbamato)zinc(II)]

I. Baba, Y. Farina, K. Kassim, A. H. Othman, I. A. Razak, H.-K. Fun and S. W. Ng

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Tetrakis[μ-N,N′-bis(4-chlorophenyl)formamidinato-N:N′]dimolybdenum(II)

M. A. Lynn, H. D. Selby, M. D. Carducci, M. A. Bruck, C. Grittini and D. L. Lichtenberger

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catena-Poly[[silver(I)-μ-{bis[4-(2-pyridylmethyleneamino)phenyl] ether}] trifluoromethanesulfonate 0.4-hydrate]: a zigzag coordination polymer

A. Tesouro Vallina and H. Stoeckli-Evans

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[2-(N,N-Dimethylcarbamoyl)ethyl]bis(dimethylglyoximato)[(R)-1-phenylethylamine]cobalt(III)

Y. Ohgo, Y. Ohashi, M. Shida, M. Hagiwara, Y. Arai, S. Takeuchi and Y. Ohgo

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Di-n-butylbis(thiophene-2-carboxylato-O,O′)tin(IV)

A. Yahyi, A. Et-touhami, I. Zidane, N.-E. Benchat, B. El-Bali and M. Bolte

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Chlorobis(clemizole)copper(II) chloride ethanol solvate

K. Braitenbach and M. Parvez

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Tetrakis[μ-N,N′-bis(4-bromophenyl)formamidinato-N:N′]dimolybdenum(II)

M. A. Lynn, H. D. Selby, M. D. Carducci, M. A. Bruck, C. Grittini and D. L. Lichtenberger

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Tricarbonylbis(4-methyl-1,3-thiazole-2(3H)-thionato-N,S²)tungsten(II)

C. Esterhuysen, G. J. Kruger, D. K. Olivier, H. G. Raubenheimer, L. Retief and S. Cronje

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trans-Chloro(methyl)bis(triphenylphosphine)palladium(II)

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4,4′-Bipyridylium di-μ-chlorotetrachlorodicuprate(II): a redetermination

C. Näther, I. Jeß and M. Bolte

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Solvated CrBr₂(thf)₂, a linear chain in the solid state

B. Twamley, R. Zehnder and P. J. Shapiro

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Bis(triethanolamine-N,O,O′)nickel(II) bis(saccharinate)

Y. Topcu, O. Andac, V. T. Yilmaz and W. T. A. Harrison

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Poly[[diaquacadmium(II)]-μ³-(1-carboxybenzene-3,5-dicarboxylato)]

J. M. S. Skakle, M. R. St. J. Foreman, M. J. Plater and C. Griffin

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A donor–acceptor adduct: sterically encumbered terphenyl dichloro[2,6-bis(2,4,6-triisopropylphenyl)phenyl]dichloro(pyridine)gallium benzene hemisolvate

B. Twamley and P. P. Power

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organic compounds

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(1S,3S,8R,9S)-3,7,7,10-Tétraméthyl-9-[(1S,3S,8R,9S)-3,7,7-triméthyl-10-
méthylènetricyclo[6,4,0,0^1,3]dodéc-9-yloxy]tricyclo[6,4,0,0^1,3]dodéc-10-ène

A. Auhmani, E. Kossareva, H. Eljamili, M. Reglier, M. Pierrot and A. Benharref

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(1,3-Benzo[d]dioxol-5-yl)(2-pyridyl)methyl cyanide

A. Duthie, P. Scammells, A. Katsifis and E. R. T. Tiekink

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3,17-Dioxo-11-fluoroandrosta-4,6-diene

M. Uerdingen, M. Schürmann, H. Preut and N. Krause

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3-Cyano-4-(N,N-dimethylamino)-6-phenyl-2H-pyran-2-one

W. Errington, S. Malhotra and V. S. Parmar

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2,3,4′-Trichlorobiphenyl

H.-J. Lehmler, S. Parkin and L. W. Robertson

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4-Cyanophenyl 4-n-dodecanyloxybenzoate

K. Kubo and A. Mori

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Tricoccin R6

A. A. Ajees, K. Sekar, S. Parthasarathy, H. Schenk, B. Epe and A. Mondon

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2-(7-Isopropyl-2-methylcyclohepta[b]thiophen-8-ylidene)propanedinitrile

A. Mori, K. Kubo, B. Z. Yin and H. Takeshita

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2-Phenyl-4-(p-toluidinomethylene)-5-oxazolone

G. Vasuki, V. Parthasarathi, K. Ramamurthi, R. M. Singh and A. Srivastava

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1-(2-Pyridyl)-8H-pyrrolo[2,1-c]-s-triazolo[4,3-a][1,4]benzodiazepinium chloride

M. Kubicki and P. W. Codding

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2-Chloro-3-[4-(ethoxycarbonyl)-1-piperidyl]-1,4-naphthoquinone

D. E. Lynch, I. McClenaghan and S. J. Coles

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3,6-Di-2-pyridinio-1,2,4,5-tetrazine diperchlorate

H. Liu, M. Du and X.-H. Bu

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18-Isopropyl-15-(4-nitrophenyl)-5,8,11-trioxa-2,14-dithiabicyclo[14.4.1]henicosa-1(20),16,18-trien-21-one

A. Mori, K. Kubo, B. Z. Yin and H. Takeshita

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Selective reduction in ring size of silsesquioxane oligomers mediated by potassium metal

P. L. Arnold and A. J. Blake

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10-[2-(9-Anthryloxy)ethyl]-9-acridone

F.-Z. Senhaji, B. El-Bali, A. Kerbal, M. Zenkouar, J. Tajdine, N. Bitit and M. Bolte

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Octadecane-1,18-diol

N. Nakamura and R. Watanabe

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2-(Toluene-4-sulfonylamino)benzoyl fluoride

B. Ziemer, O. Surygina and M. Ehwald

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Sebacic acid

A. D. Bond, M. R. Edwards and W. Jones

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Azelaic acid

A. D. Bond, M. R. Edwards and W. Jones

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4,7-Phenanthroline

A. D. Bond, N. Shan and W. Jones

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1-(3-Chloro-4-methylphenyl)-3-pyrroline-2,5-dione

D. E. Lynch and I. McClenaghan

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1,4-Bis(dinitromethyl)cubane

J. R. Deschamps, R. M. Moriarty and R. D. Gilardi

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4-(4-Bromophenyl)-3,7,7-trimethyl-4,7,8,9-tetrahydro-2H-pyrazolo[3,4-b]quinolin-5(6H)-one

D. Cannon, A. Quesada, J. Quiroga, D. Mejía, B. Insuasty, R. Abonia, J. Cobo, M. Nogueras, A. Sánchez and J. N. Low

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4-(4-Methoxyphenyl)-3,7,7-trimethyl-4,7,8,9-tetrahydro-2H-pyrazolo[3,4-b]quinolin-5(6H)-one

D. Cannon, A. Quesada, J. Quiroga, D. Mejía, B. Insuasty, R. Abonia, J. Cobo, M. Nogueras, A. Sánchez and J. N. Low

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3,7,7-Trimethyl-4-phenyl-4,7,8,9-tetrahydro-2H-pyrazolo[3,4-b]quinolin-5-(6H)-one

D. Cannon, A. Quesada, J. Quiroga, D. Mejía, B. Insuasty, R. Abonia, J. Cobo, M. Nogueras, A. Sánchez and J. N. Low

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3,7,7-Trimethyl-4-(β-naphthyl)-4,7,8,9-tetrahydro-2H-pyrazolo[3,4-b]quinolin-5(6H)-one

D. Cannon, A. Quesada, J. Quiroga, D. Mejía, B. Insuasty, R. Abonia, J. Cobo, M. Nogueras, A. Sánchez and J. N. Low

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Doxylamine hydrogen succinate

M. Parvez, S. Dalrymple and A. Cote

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9α-Chloro-3β,11β-dihydroxy-5α-androstan-17-one

H. Novoa de Armas, O. M. Peeters, N. M. Blaton, C. J. De Ranter, J. A. Ruíz Garcia, M. Reyes Moreno and Y. M. Alvarez Ginarte

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1,3-Bis(dimethylamino)-1-methyltrimethinium hexafluorophosphate

G. Ferguson, A. J. McAlees and R. McCrindle

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2,2′-[(3-Hydroxyphenyl)methylene]bis(3-hydroxy-5,5-dimethyl-2-cyclohexen-1-one) hydrate

M. Bolte, A. Degen and S. Rühl

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Redetermination of 3,3,6,6-tetramethyl-4a-hydroxy-9-(ortho-methoxyphenyl)-2,3,4,4a,5,6,7,8,9,9a-decahydro-1H-xanthene-1,8-dione at 173 K

M. Bolte, A. Degen and S. Rühl

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2′,6′-Dimethoxyflavone–bromoacetic acid (1/1)

J.-C. Wallet, E. Espinosa, E. Molins and C. Miravitlles

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1,4-Diallylquinoxaline-2,3(1H,4H)-dione

N. E. Mustaphi, S. Ferfra, E. M. Essassi and M. Pierrot

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6-(1H-1,2,3-Benzotriazol-1-yl)-1,2,5,6-tetrahydro-4H-pyrrolo[3,2,1-ij]quinoline

A. Quesada, D. Cannon, J. Quiroga, B. Insuasty, R. Abonia, A. Albornoz, J. Cobo, M. Nogueras, A. Sánchez and J. N. Low

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5-(1,3-Benzothiazol-2-yliminomethyl)-2,2-dimethyl-1,3-dioxane-4,6-dione

D. Cannon, A. Quesada, J. Quiroga, B. Insuasty, R. Abonia, P. Hernández, J. Cobo, M. Nogueras, A. Sánchez and J. N. Low

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6-(2-Hydroxybenzoyl)-2-(4-nitrophenyl)pyrazolo[1,5-a]pyrimidine

D. Cannon, A. Quesada, J. Quiroga, B. Insuasty, R. Abonia, D. Mejía, J. Cobo, M. Nogueras, A. Sánchez and J. N. Low

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5,5-Dimethyl-3-[(5-phenyl-1H-pyrazol-3-yl)amino]cyclohex-2-en-1-one

A. Quesada, D. Cannon, J. Quiroga, B. Insuasty, R. Abonia, D. Mejía, J. Cobo, M. Nogueras, A. Sánchez and J. N. Low

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6-(2-Hydroxybenzoyl)-2-phenylpyrazolo[1,5-a]pyrimidine

A. Quesada, D. Cannon, J. Quiroga, D. Mejía, B. Insuasty, R. Abonia, J. Cobo, M. Nogueras, A. Sánchez and J. N. Low

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5α-Androst-3-en-17-one

J. A. Paixão, L. C. R. Andrade, M. J. de Almeida, E. J. Tavares da Silva, F. M. Fernandes Roleira, M. L. Sá e Melo and A. S. Campos Neves

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L-Phenylalanine nitrate (4/1)

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Diorthobenzenotetra(5′,2′-tetrazolo)[5′-(2)-2′-(6)]cyclophane

R. N. Butler, J. M. G. McGinley, M. F. Mahon, K. C. Molloy and E. P. NíBhrádaigh

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Research communications are designed to help authors bring out the science behind their structure determinations. Authors are encouraged to report more than one structure in the same communication and also to include the results of investigations with other techniques. The Research communications format makes Acta E the natural home for structure determinations with interesting science to report.

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