Acta Crystallographica Section C

Crystal Structure Communications

Volume 56, Part 2 (February 2000)



[Issue Author Index][Volume Author Index]
[Cover illustration] Cover illustration: The structure of the [Y(H2O)6{(CH3)2SO}2]3+ cation with displacement ellipsoids drawn at the 30% probability level. See Kristiansson and Lindqvist-Reis [Acta Cryst. C56, 163-164].

inorganic compounds


 

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Acta Cryst. (2000). C56, 133-135  [ doi:10.1107/S0108270199014067 ]

Mercury(II) polyphosphate, Hg(PO3)2

M. Weil and R. Glaum

Synopsis: Hg(PO3)2 is isotypic with the low-temperature form [alpha]-Cd(PO3)2. It contains infinite polyphosphate chains and 1[infinity][HgO2O4/2] units, both running parallel to the c axis.

Formula: Hg(PO3)2

Online February 2000


 

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Acta Cryst. (2000). C56, 136-137  [ doi:10.1107/S0108270199013700 ]

Rubidium stannate(IV), Rb4SnO4

C. Hoch and C. Röhr

Synopsis: The title compound crystallizes with the Na4CoO4 structure type, showing discrete SnO44- anions as main building blocks. The structure is thus isotypic with a series of corresponding compounds A4MO4 (A = alkali metal and M = group IV element).

Formula: Rb4SnO4

Online February 2000


 

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Acta Cryst. (2000). C56, 138-139  [ doi:10.1107/S0108270199015553 ]

High-temperature LaAs2

M. Wang and A. Mar

Synopsis: The high-temperature structure of lanthanum diarsenide comprises La3+ cations coordinated in a tricapped trigonal prismatic geometry by As atoms from two kinds of polyarsenide chain anions, namely As35- and As57-.

Formula: LaAs2

Online February 2000


metal-organic compounds


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Acta Cryst. (2000). C56, 140-141  [ doi:10.1107/S0108270199012111 ]

(Triphenylarsine)iodinemonobromine: a charge-transfer adduct in which arsenic selectively bonds to iodine

W. I. Cross, M. Z. Dahalan, S. M. Godfrey, N. Jaiboon, C. A. McAuliffe, R. G. Pritchard and G. M. Thompson

Formula: [As(BrI)(C6H5)3]

Online February 2000


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Acta Cryst. (2000). C56, 142-145  [ doi:10.1107/S0108270199012664 ]

Two saccharinate complexes: [Mn(phen)2(sac)(H2O)]+·sac- and [Co(bipy)2(sac)(H2O)]+·sac-

R. M. K. Deng, C. Bilton, K. B. Dillon and J. A. K. Howard

Online February 2000


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Acta Cryst. (2000). C56, 146-148  [ doi:10.1107/S010827019901269X ]

A three-dimensional network of cadmium

G. Mostafa, A. Mondal, I. R. Laskar, A. J. Welch and N. Ray Chaudhuri

Formula: [Cd3(NCS)6(C5H16N3)2]·H2O

Online February 2000


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Acta Cryst. (2000). C56, 149-151  [ doi:10.1107/S0108270199013116 ]

Redetermination of the double salt [Lambda]-[tris(ethylenediamine)cobalt(III) trichloride]-sodium chloride-water (2/1/6)

L. J. Farrugia, R. D. Peacock and B. Stewart

Formula: [Co(C2H8N2)3]2Cl6·NaCl·6H2O

Online February 2000


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Acta Cryst. (2000). C56, 152-153  [ doi:10.1107/S0108270199013426 ]

The dipotassium salt of p-nitrocatechol sulfate

R. von Bülow and I. Usón

Formula: K2(C6H3NO7S)·2H2O

Online February 2000


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Acta Cryst. (2000). C56, 154-155  [ doi:10.1107/S0108270199013475 ]

Bis(tetra-n-butylammonium) bis[(mandelato)oxo(peroxo)vanadate(V)] mandelic acid solvate

I. K. Smatanová, J. Marek, P. Svancárek and P. Schwendt

Formula: (C16H36N)2[V2O2(O2)2(C8H6O3)2]·C8H8O3

Online February 2000


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Acta Cryst. (2000). C56, 156-158  [ doi:10.1107/S0108270199013566 ]

Diaquatris(pentane-2,4-dionato-O,O')holmium(III) monohydrate and diaquatris(pentane-2,4-dionato-O,O')holmium(III) 4-hydroxypentan-2-one solvate dihydrate

H. Kooijman, F. Nijsen, A. L. Spek and F. van het Schip

Formula: [Ho(C5H7O2)3(H2O)2]·C5H8O2·H2O and [Ho(C5H7O2)3(H2O)2]·H2O

Online February 2000


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Acta Cryst. (2000). C56, 159-160  [ doi:10.1107/S0108270199013591 ]

Tetrabutylbis(N-phthaloylglycinato)distannoxane dimer

M. Parvez, S. Anwar, A. Badshah, B. Ahmad, A. Majeed and M. Ashfaq

Formula: [Sn4(C4H9)8(C10H6NO4)4O2]

Online February 2000


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Acta Cryst. (2000). C56, 161-162  [ doi:10.1107/S0108270199013827 ]

Hexakis(imidazole-N3)nickel(II) bis(4-methoxybenzoate)

Z. Wang, Y. Zhang, I. A. Razak, S. Shanmuga Sundara Raj, H.-K. Fun, F. Li and H. Song

Formula: [Ni(C3H4N2)6](C8H7O3)2

Online February 2000


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Acta Cryst. (2000). C56, 163-164  [ doi:10.1107/S0108270199014092 ]

Hexaaquabis(dimethyl sulfoxide)yttrium(III) trichloride

O. Kristiansson and P. Lindqvist-Reis

Formula: [Y(C2H6OS)2(H2O)6]Cl3

Online February 2000


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Acta Cryst. (2000). C56, 165-167  [ doi:10.1107/S0108270199014432 ]

Bis(4-aminopyridine)silver(I) nitrate and tris(2,6-diaminopyridine)silver(I) nitrate

O. Kristiansson

Formula: [Ag(C5H6N2)2]NO3 and [Ag(C5H7N3)3]NO3

Online February 2000


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Acta Cryst. (2000). C56, 168-170  [ doi:10.1107/S0108270199014080 ]

Sodium diphenylacetate, an infinite columnar structure

J. A. Paixão, F. V. Nascimento, A. Matos Beja and M. Ramos Silva

Formula: Na+·C14H11O2-

Online February 2000


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Acta Cryst. (2000). C56, 171-173  [ doi:10.1107/S0108270199014109 ]

Linkage isomerism of organoplatinum(II) compounds coordinated by two 1,3-dimethylbarbiturate anions

K. Noguchi, T. Tamura, H. Yuge and T. K. Miyamoto

Formula: [Pt(C6H7N2O3)2(C2H8N2)]·2H2O and [Pt(C6H7N2O3)2(C2H8N2)]

Online February 2000


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Acta Cryst. (2000). C56, 174-176  [ doi:10.1107/S0108270199014249 ]

Bis(4-hydroxybenzoato-O)(1,4,8,11-tetraazacyclotetradecane-[kappa]4N)nickel(II): a three-dimensional framework built from O-H...O and N-H...O hydrogen bonds

C. Glidewell, G. Ferguson, R. M. Gregson and A. J. Lough

Formula: [Ni(C7H5O3)2(C10H24N4)]

Online February 2000


 

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Acta Cryst. (2000). C56, 177-178  [ doi:10.1107/S0108270199014419 ]

Na10(glycine)2[H2W12O42]·28H2O

H. Naruke, N. Fukuda and T. Yamase

Synopsis: In the title compound, decasodium diglycine dihydrogenodotetracontadodecatungstate(10-) octacosahydrate, the two glycine carboxylate O atoms coordinate three different Na+ cations, while the amino N atom forms hydrogen bonds with the paratungstate anion through both terminal and bridging O atoms.

Formula: Na10[H2W12O42]·2C2H5NO2·28H2O

Online February 2000


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Acta Cryst. (2000). C56, 179-181  [ doi:10.1107/S0108270199014833 ]

Bis[chlorobis(1,10-phenanthroline-N,N')(thiourea-S)nickel(II)] chloride nitrate diethanol solvate

L. Suescun, A. W. Mombrú, R. A. Mariezcurrena, H. Pardo, S. Russi and R. Baggio

Formula: [Ni(CH4N2S)(C12H8N2)2Cl]2(NO3)Cl·2C2H6O

Online February 2000


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Acta Cryst. (2000). C56, 182-183  [ doi:10.1107/S0108270199015048 ]

(Dicyclohexyldithiophosphinato-S,S')[2-(2-pyridyl-N)phenyl]mercury(II)

J. S. Casas, E. E. Castellano, M. S. García Tasende, A. Sánchez, J. Sordo, E. M. Vázquez-López and J. Zukerman-Schpector

Formula: [Hg(C11H8N)(C12H22PS2)]

Online February 2000


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Acta Cryst. (2000). C56, 184-186  [ doi:10.1107/S0108270199015152 ]

Sulfido-bridged rhenium-carbonyl complexes with planar and folded Re2S2 cores

U. Flörke, H. Egold and D. Schwarze

Formula: [Re2(C12H23P)2(C10H7S)2(CO)6] and [Re2(C7H7OS)2(CO)8]

Online February 2000


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Acta Cryst. (2000). C56, 187-189  [ doi:10.1107/S0108270199015450 ]

(2-Acetylpyridine-[kappa]N 4-phenylthiosemicarbazonato-[kappa]2N1,S)halogeno-trans-dimethyltin(IV) (halogeno = chloro and bromo)

R. H. P. Francisco, M. T. do P. Gambardella, G. F. de Sousa and A. Abras

Formula: [SnBr(CH3)2(C14H13N4S)] and [Sn(CH3)2(C14H13N4S)Cl]

Online February 2000


organic compounds


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Acta Cryst. (2000). C56, 190-192  [ doi:10.1107/S0108270199010100 ]

N,N'-Dimethyl-1,4-dithiine-1,2:4,5-tetracarboximide and N,N'-dimethyl-1,4-diselenine-1,2:4,5-tetracarboximide

F. Brisse, M. Atfani, J.-Y. Bergeron, F. Bélanger-Gariépy and M. Armand

Formula: C10H6N2O4Se2 and C10H6N2O4S2

Online February 2000


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Acta Cryst. (2000). C56, 193-196  [ doi:10.1107/S0108270199013037 ]

Structural analysis of pyrrolidinones

F. Camus, B. Norberg, A. Legrand, B. Rigo, F. Durant and J. Wouters

Online February 2000


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Acta Cryst. (2000). C56, 197-198  [ doi:10.1107/S0108270199013499 ]

Tylophorine B benzene solvate

Q. Wang, L. Xie and J. Zhai

Formula: C23H25NO3·C6H6

Online February 2000


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Acta Cryst. (2000). C56, 199-200  [ doi:10.1107/S010827019901358X ]

2[beta]-Hydroxy-4'-demethyldesoxypodophyllotoxin

D. Du Boulay, K. Shaari, B. W. Skelton, P. G. Waterman and A. H. White

Formula: C21H20O8

Online February 2000


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Acta Cryst. (2000). C56, 201-205  [ doi:10.1107/S010827019901361X ]

1-Deoxy-1-(4-fluorophenyl)-[beta]-D-ribofuranose, its hemihydrate, and 1-deoxy-1-(2,4-difluorophenyl)-[beta]-D-ribofuranose: structural evidence for intermolecular C-H...F-C interactions

J. W. Bats, J. Parsch and J. W. Engels

Formula: Two forms of C11H13FO4, C11H13FO4·0.5H2O and C11H12F2O4

Online February 2000


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Acta Cryst. (2000). C56, 206-207  [ doi:10.1107/S0108270199013724 ]

1:1 Complex of 4-nitrobenzoic acid and 4-nitropyridine N-oxide

R. Moreno-Fuquen, E. V. Ribeiro de Castro, M. Moreno, R. H. De Almeida Santos and A. M. Montaño

Formula: C7H5NO4·C5H4N2O3

Online February 2000


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Acta Cryst. (2000). C56, 208-210  [ doi:10.1107/S0108270199013815 ]

Two phenanthroline hydrochlorides

K. Hensen, B. Spangenberg and M. Bolte

Formula: 3C12H9N2+·2Cl-·HCl·Cl-·CHCl3 and C12H9N+·Cl-

Online February 2000


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Acta Cryst. (2000). C56, 211-212  [ doi:10.1107/S0108270199013839 ]

4,4'-Dibromobenzophenone at 293 and 103 K

B. Peric and B. Kojic-Prodic

Formula: C13H8Br2O

Online February 2000


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Acta Cryst. (2000). C56, 213-214  [ doi:10.1107/S0108270199013852 ]

2,6-Bis-(3-trifluoromethylpyrazol-1-yl)pyridine

M. A. Halcrow, C. A. Kilner and M. Thornton-Pett

Formula: C13H7F6N5

Online February 2000


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Acta Cryst. (2000). C56, 215-218  [ doi:10.1107/S0108270199013876 ]

Weak C-H...O and C-H...N interactions in nitropyrazoles

C. Foces-Foces, N. Jagerovic and J. Elguero

Formula: Two isomers of C4H5N3O2

Online February 2000


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Acta Cryst. (2000). C56, 219-221  [ doi:10.1107/S010827019901392X ]

The [gamma]-form of n-eicosanol

F. Michaud, L. Ventolà, M. T. Calvet, M. A. Cuevas-Diarte, X. Solans and M. Font-Bardía

Formula: C20H42O

Online February 2000


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Acta Cryst. (2000). C56, 222-224  [ doi:10.1107/S0108270199014079 ]

3-(2-Furyl)-6-(4-methylphenyl)-7H-1,2,4-triazolo[3,4-b][1,3,4]thiadiazine and its 6-phenyl analogue

S. Özbey, N. Ulusoy and E. Kendi

Formula: C14H10N4OS and C15H12N4OS

Online February 2000


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Acta Cryst. (2000). C56, 225-226  [ doi:10.1107/S0108270199014055 ]

Leurosine methiodide-methanol-water (1/3/2)

C. Hardouin, E. Doris, B. Rousseau, C. Mioskowski and M. Nierlich

Formula: C47H59IN4O9·3CH3OH·2H2O

Online February 2000


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Acta Cryst. (2000). C56, 227-228  [ doi:10.1107/S0108270198017429 ]

(1R,2S)-2-[N-Methyl-N-(4-toluenesulfonyl)amino]-1-phenylpropan-1-ol

K. Chinnakali, S. Shanmuga Sundara Raj, H.-K. Fun, K. Sriraghavan and V. T. Ramakrishnan

Formula: C17H21NO3S

Online February 2000


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Acta Cryst. (2000). C56, 229-230  [ doi:10.1107/S0108270199014353 ]

4,17,25,26-Tetraaza-6,9,12,15-tetraoxa-2,19,21,24-tetrathiatricyclo[18.4.11,4.117,20]hexacosa-1(25),20(26)-diene-3,5,16,18-tetraone

N. S. Cho, S. I. Hong, J.-G. Kim and I.-H. Suh

Formula: C14H16N4O8S4

Online February 2000


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Acta Cryst. (2000). C56, 231-232  [ doi:10.1107/S0108270199014596 ]

N-(4-Cyanophenyl)-[alpha]-(4-methoxyphenyl)nitrone

J.-G. Kang, J.-P. Hong and I.-H. Suh

Formula: C15H12N2O2

Online February 2000


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Acta Cryst. (2000). C56, 233-234  [ doi:10.1107/S0108270199014420 ]

Cyclomicrobuxine monohydrate

M. Parvez, Atta-ur-Rahman, M. I. Choudhary, S. Parveen and S. A. M. Ayatollahi

Formula: C25H39NO2·H2O

Online February 2000


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Acta Cryst. (2000). C56, 235-236  [ doi:10.1107/S0108270199014547 ]

2,2-Dimethyl-1-(2,4,6-trinitrophenyl)hydrazine

J. W. Quail, J. A. Weil and M. P. Singh

Formula: C8H9N5O6

Online February 2000


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Acta Cryst. (2000). C56, 237-238  [ doi:10.1107/S0108270199014559 ]

Acetone-4-methylthiosemicarbazone at 220 K

S. Parsons, A. G. Smith, P. A. Tasker and D. J. White

Formula: C5H11N3S

Online February 2000


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Acta Cryst. (2000). C56, 239-241  [ doi:10.1107/S0108270199014560 ]

Chiral and meso-bis([2.2]paracyclophan-4-yl)methane and meso-bis([2.2]paracyclophan-4-yl) sulfide

P. G. Jones, L. Ernst, I. Dix and L. Wittkowski

Formula: C32H30S and C33H32

Online February 2000


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Acta Cryst. (2000). C56, 242-243  [ doi:10.1107/S0108270199014572 ]

4-(4-Hydroxybenzylideneamino)-4H-1,2,4-triazole hemihydrate

D.-R. Zhu, Y. Xu, Y.-J. Liu, Y. Song, Y. Zhang and X.-Z. You

Formula: C9H8N4O·0.5H2O

Online February 2000


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Acta Cryst. (2000). C56, 244-245  [ doi:10.1107/S0108270199014651 ]

4-Chloro-N-(4-cyano-2-nitrophenyl)-3-nitrobenzamide

L. Cronin, D. A. Adams, D. J. Nightingale and J. H. Clark

Formula: C14H7ClN4O5

Online February 2000


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Acta Cryst. (2000). C56, 246-249  [ doi:10.1107/S0108270199014663 ]

Model porphyrin precursors: 1,2,4,5-tetrakis(cyanomethyl)benzene, methyl 3,4,5-triacetoxybenzoate and 2-(N-phthalimidomethyl)benzoic acid

P. G. Jene and J. A. Ibers

Formula: C16H11NO4, C14H14O8 and C14H10N4

Online February 2000


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Acta Cryst. (2000). C56, 250-251  [ doi:10.1107/S0108270199014699 ]

Absolute configuration of (-)-4-(3,4-dichlorophenyl)-4-(2-pyridyl)butanoic acid: essential information to determine crucial steric features of arpromidine-type histamine H2 receptor agonists

M. Zabel, J. Breu, F. Rau, K.-J. Range, V. Krey, A. Uffrecht and A. Buschauer

Formula: C10H16NO^+·C15H12Cl2NO2^-

Online February 2000


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Acta Cryst. (2000). C56, 252-253  [ doi:10.1107/S0108270199014705 ]

Morpholine-[beta]-iodophenylacetylene (1/1) revisited: an exceptionally short I...N contact

A. S. Batsanov and J. A. K. Howard

Formula: C8H5I·C4H9NO

Online February 2000


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Acta Cryst. (2000). C56, 254-255  [ doi:10.1107/S0108270199014675 ]

(E)-5-[(4-Nitrophenylhydrazono)phenylacetyl]-3-phenylisoxazole

G. Bruno, F. Nicoló, M. Panzalorto, M. Gattuso and G. L. La Torre

Formula: C23H16N4O4

Online February 2000


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Acta Cryst. (2000). C56, 256-257  [ doi:10.1107/S0108270199014742 ]

1-(2,4,6-Trimethylphenyl)-1H-1,2,3,4-tetrazole

A. S. Lyakhov, D. O. Ivashkevich, P. N. Gaponik, Y. V. Grigoriev and L. S. Ivashkevich

Formula: C10H12N4

Online February 2000


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Acta Cryst. (2000). C56, 258-259  [ doi:10.1107/S0108270199014754 ]

8-Chloro-6-phenyl-4H-[1,2,4]triazolo[4,3-a][1,5]benzodiazepin-5(6H)-one

A. Borassi, M. M. Carnasciali, A. Mugnoli and G. Roma

Formula: C16H11ClN4O

Online February 2000


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Acta Cryst. (2000). C56, 260-262  [ doi:10.1107/S0108270199014213 ]

A series of three bis[2-(methyl/trifluoromethyl)-4H-3,1-benzoxazin-4-one] compounds

A. Yu. Kovalevsky and I. I. Ponomarev

Formula: C18H6F6N2O4, C19H8F6N2O4 and C19H14N2O4

Online February 2000


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Acta Cryst. (2000). C56, 263-264  [ doi:10.1107/S0108270199016297 ]

C[triple bond]C-H...N hydrogen bonding in 3-methylthio-4-propargylthioquinoline

S. Boryczka, A. M. M. Schreurs, J. Kroon and T. Steiner

Formula: C13H11NS2

Online February 2000


electronic papers (inorganic compounds)


 

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Acta Cryst. (2000). C56, e36-e37  [ doi:10.1107/S0108270100000421 ]

Zirconium dihydroxide chromate

B. M. Casari and V. Langer

Synopsis: The 0D structure of Zr(OH)2CrO4 has been reinvestigated [Mark (1972). Acta Chem. Scand. 26, 3744-3756]. It consists of infinite nets with the composition [Zr3(OH)6CrO4]n4n+, joined together by chromate groups; the zirconium polyhedra are not influencead by the 0D phenomenon.

Formula: Zr(OH)2CrO4

Online February 2000


electronic papers (metal-organic compounds)


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Acta Cryst. (2000). C56, e38-e39  [ doi:10.1107/S010827010000038X ]

Ammonium dichlorobis(dimethylglyoximato-N,N')iridate(III)

M. Ohashi, K. Kajiyama, H. Yuge and T. K. Miyamoto

Synopsis: In the title compound, the Ir atom is octahedrally coordinated by two trans Cl- and two dimethylglyoximate chelate ligands in the equatorial plane. A two-dimensional hydrogen-bond network between NH4+ and [IrCl2(C4H7N2O2)2]- is extended along the bc plane.

Formula: (NH4)[IrCl2(C4H7N2O2)2]

Online February 2000


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Acta Cryst. (2000). C56, e40-e41  [ doi:10.1107/S010827010000041X ]

An organopalladium(II) compound including enolate oxygen- and sp3-carbon-bound 1,3-dimethylbarbiturate ligands: (1,2-diaminoethane)bis(1,3-dimethylbarbiturato)palladium(II) 5.5-hydrate

K. Noguchi, H. Yuge and T. K. Miyamoto

Synopsis: In the title compound, the Pd atom is coordinated by two 1,3-dimethylbarbiturate anions, one through a deprotonated tetrahedral C atom and the other through the enolate O atom.

Formula: [Pd(C6H7N2O3)2(C2H8N2)]·5.5H2O

Online February 2000


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Acta Cryst. (2000). C56, e42-e43  [ doi:10.1107/S0108270100000391 ]

An alkyl-palladium(II) complex with a bidentate phosphine ligand: [1,3-bis(diphenylphosphino)propane-P,P']dimethylpalladium(II) toluene hemisolvate

A. S. Abu-Surrah, T. Debaerdemaeker, W. Huhn, B. Rieger, M. Klinga, T. Repo and M. Leskelä

Synopsis: In the title dimethylpalladium(II) complex, [Pd(CH3)2(C27H26P2)]·0.5C7H8, the P-Pd-P angle [93.18 (3)°] is significantly larger than that in the corresponding dichloro complex [89.32 (3)°]. The toluene molecule is disordered around an inversion centre.

Formula: [Pd(CH3)2(C27H26P2)]·0.5C7H8

Online February 2000


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Acta Cryst. (2000). C56, e44-e45  [ doi:10.1107/S0108270100000639 ]

Inhibition of a palladium(II) catalyst upon formation of a di-[mu]-chloro complex: di-[mu]-chloro-bis[1,2-bis(diphenylphosphino)ethane-P,P']dipalladium(II) bis(tetrafluoroborate) bis(deuterochloroform) solvate

A. S. Abu-Surrah, M. Klinga, T. Repo, M. Leskelä, T. Debaerdemaeker and B. Rieger

Synopsis: The title compound contains a centrosymmetric dimeric cation and it is formed upon slow evaporation of a solution containing bis(acetonitrile)bis[1,2-bis(diphenylphosphino)ethane]palladium(II) bis(tetrafluoroborate) in deuterated chloroform. The anion and the solvent molecule are slightly disordered.

Formula: [Pd2Cl2(C26H24P2)2](BF4)2·2CDCl3

Online February 2000


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Acta Cryst. (2000). C56, e46  [ doi:10.1107/S0108270100000408 ]

4,5-Bis(ferrocenylmethylthio)-1,3-dithiol-2-one

Z. Chohan, R. A. Howie, J. L. Wardell and J. N. Low

Synopsis: In (C5H5FeC5H5)2(C5H4OS4), the values of the geometric parameters of the ferrocene and 1,3-dithiol-2-one (dmio) moieties are within normal ranges.

Formula: [Fe2(C5H5)2(C15H12OS4)]

Online February 2000


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Acta Cryst. (2000). C56, e47-e48  [ doi:10.1107/S0108270100000457 ]

A pseudosymmetric triclinic modification of triphenyltin isopropylxanthate

S. W. Ng and A. D. Rae

Synopsis: All three independent molecules in the triclinic modification of (O-isopropyl dithiocarbonato-S)triphenyltin show tetrahedral coordination at their Sn atoms. Bond dimensions involving the Sn atoms are similar to those found in the monoclinic modification of the same compound. Two of the independent molecules are related by a pseudo-translation allowing a stacking fault that reduces the intensities of h + k odd reflections.

Formula: [Sn(C6H5)3(C4H7OS2)]

Online February 2000


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Acta Cryst. (2000). C56, e49-e50  [ doi:10.1107/S0108270100000494 ]

{2-[(3-Aminopropyl)aminopropyliminomethyl]imidazolato-N,N',N'',N'''}(methanol-O)copper(II) perchlorate

A. Pajunen, F. Cámara, J. M. Dominques-Vera and E. Colacio

Synopsis: In the title compound, four N atoms from the deprotonated ligand derived from bis(3-aminopropyl)amine and 2-imidazolecarboxaldehyde are coordinated to the Cu atom. The methanol O atom occupies one axial position with a Cu-O bond distance of 2.295 (2) Å.

Formula: [Cu(C10H18N5)(CH4O)]ClO4

Online February 2000


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Acta Cryst. (2000). C56, e51-e52  [ doi:10.1107/S0108270100000561 ]

Bis(ethylenediamine-N,N')(pyrimidine-2-carboxylato-N1,O)cobalt(III) bis(trifluoromethanesulfonate) dihydrate

S. Antolic, B. Kojic-Prodic and J. Lovric

Synopsis: In the title compound, the coordination geometry of the CoIII atom is only slightly distorted from regular octahedral, and the racemic nature of the material was confirmed by X-ray structure analysis.

Formula: [Co(C5H3N2O2)(C2H8N2)2](CF3O3S)2·2H2O

Online February 2000


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Acta Cryst. (2000). C56, e53-e54  [ doi:10.1107/S0108270100001104 ]

A 1:1 adduct between dimethyltin dibromide and N-methylpyrrolidinone (NMP)

U.-C. König, M. Berkei, F. Neikes, H. Preut and T. N. Mitchell

Synopsis: The tin coordination in dibromodimethyl(N-methylpyrrolidin-2-one-O)tin(IV) is a distorted trigonal bipyramid with the methyl groups and one bromine in equatorial, and the N-methylpyrrolidinone (NMP) ligand and the other bromine in apical positions. The Sn-Br bond lengths are 2.6737 (4) and 2.5256 (4) Å.

Formula: [SnBr2(CH3)2(C5H9NO)]

Online February 2000


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Acta Cryst. (2000). C56, e55-e56  [ doi:10.1107/S0108270100001116 ]

Bis(tetramethylammonium) nonadecaoxohexamolybdenum(VI) monohydrate

D. Wu, S. Wang, X. Lin, C. Lu and H. Zhuang

Synopsis: The six Mo atoms of the title compound form a standard octahedral cage through bridging O atoms. The [Mo6O19]2- anions as a whole have exact Oh symmetry with three crystallographic fourfold axes aligned along Mo-O-Mo.

Formula: (C4H12N)2[Mo6O19]·H2O

Online February 2000


electronic papers (organic compounds)


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Acta Cryst. (2000). C56, e57  [ doi:10.1107/S0108270100000378 ]

The new chiral ligand 3-ethoxy-4-[(1R,2S)-(2-hydroxy-1,2-diphenylethyl)amino]-3-cyclobutene-1,2-dione

H. Zhou, Y. Yuan, A. S. C. Chan, T.-K. Yang and R. Xie

Synopsis: The crystal structure contains two independent molecules with slightly different conformations; these are linked to form a two-dimensional network by pairs of O-H...O and N-H...O hydrogen bonds.

Formula: C20H19NO4

Online February 2000


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Acta Cryst. (2000). C56, e58-e59  [ doi:10.1107/S0108270100000433 ]

Triclinic polymorphs of triphenylphosphine and triphenylphosphine sulfide

B. Ziemer, A. Rabis and H.-U. Steinberger

Synopsis: New triclinic polymorphs of triphenylphosphine, C18H15P, (I), and triphenylphosphine sulfide, C18H15PS, (II), were crystallized. For the structure of (I), it is obvious that the highest peaks in the final difference electron-density map are located at the `lone-pair regions' of P atoms. We have observed this effect in two further phosphorous-containing structures.

Formula: C18H15PS and C18H15P

Online February 2000


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Acta Cryst. (2000). C56, e60-e61  [ doi:10.1107/S0108270100000445 ]

Oleana-12(13),15(16)-diene-3[alpha],28-diyl diacetate

K. Bhattacharyya, T. Kar, P. K. Dutta, B. Achari, G. Bocelli and L. Righi

Synopsis: The title compound is a triterpene isolated from the leaves of the plant Jacquinia Ruscifolia, found in Mexico. The absolute structure could not be established unambiguously. The saturated rings are all in chair conformations, while the unsaturated rings are half chairs.

Formula: C34H52O4

Online February 2000


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Acta Cryst. (2000). C56, e62  [ doi:10.1107/S0108270100000470 ]

Dodecyl 2-nitrophenyl disulphide

J. N. Low and J. L. Wardell

Synopsis: Dodecyl 2-nitrophenyl disulphide contains an intramolecular S...O contact of 2.623 (3) Å. The angle between the planes of the NO2 group and the attached phenyl ring is 4.2 (3)°.

Formula: C18H29NO2S2

Online February 2000


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Acta Cryst. (2000). C56, e63  [ doi:10.1107/S0108270100000482 ]

(2-Aminoethoxy)bis(2-thienyl)boron

J. N. Low, O. Musgrave and J. Wardell

Synopsis: In the five-membered ring in the title compound, the dimensions at the B atom are N-B 1.654 (3), O-B 1.479 (3), and C-B 1.606 (3) and 1.609 (3) Å.

Formula: C10H12BNOS2

Online February 2000


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Acta Cryst. (2000). C56, e64-e65  [ doi:10.1107/S0108270100000548 ]

L-Methionyl-L-alanine-2-propanol (1/2)

C. H. Görbitz

Synopsis: The crystal structure of the title compound, derived from an ultrathin plate-shaped specimen, is divided into hydrophobic and hydrophilic layers. Two peptide molecules in the asymmetric unit are related by pseudo-translation, but two of the four 2-propanol molecules have different relative orientations and hydrogen-bond interactions.

Formula: C8H16N2O3S·2C3H8O

Online February 2000


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Acta Cryst. (2000). C56, e66-e67  [ doi:10.1107/S0108270100001050 ]

N,N,N',N'-Tetramethylethylenediammonium dichloride

M. Kabak, Y. Elerman, C. Ünaleroglu, Y. Mert and T. N. Durlu

Synopsis: The title compound has a centrosymmetric dication, which is hydrogen bonded to the anions with an N...Cl distance of 3.012 (3) Å.

Formula: C6H18N22+·2Cl-

Online February 2000


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Acta Cryst. (2000). C56, e68  [ doi:10.1107/S0108270100001062 ]

Viox, a COX-II inhibitor

K. Shashi Rekha, K. Vyas, C. M. Haricharan Raju, B. Chandrashekar and G. Om Reddy

Synopsis: Viox {2,5-dihydro-4-[4-(methylsulfonyl)phenyl]-3-phenyl-2-furanone} is a selective COX-II inhibitor with anti-arthritic activity. Although the molecule itself is achiral, it crystallizes in a chiral space group and the absolute structure has been reliably determined.

Formula: C17H14O4S

Online February 2000


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Acta Cryst. (2000). C56, e69-e70  [ doi:10.1107/S0108270100001074 ]

The 1:1 complex of 4-nitrophenol and 4-methylpyridine

Z. M. Jin, Y. J. Pan, D. J. Xu and Y. Z. Xu

Synopsis: 4-Nitrophenol and 4-methylpyridine are linked by an O-H...O hydrogen bond [O...N 2.668 (2) Å]. These dimers pack in a herring-bone pattern in the crystal lattice.

Formula: C6H5NO3·C6H7N

Online February 2000


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Acta Cryst. (2000). C56, e71  [ doi:10.1107/S0108270100001086 ]

2,3,3a,4,5a,6,7,8-Octahydro-5a-methyl-6,9-methano-1H,9H-5-oxa-4-azacyclopenta[c]indene

W. Tam, S. Handerson and G. Ferguson

Synopsis: The regio- and stereochemistry of the title compound has been established by X-ray analysis. The molecular dimensions are normal.

Formula: C12H15NO

Online February 2000


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Acta Cryst. (2000). C56, e72  [ doi:10.1107/S0108270100001098 ]

4-(Diphenylphosphinoyl)-3-methyl-N-phenyl-1,2-isoxazole-5-carboxamide

R. R. Böduel, G. Reeske, M. Schürmann, H. Preut and T. N. Mitchell

Synopsis: The title compound, a phosphorus-substituted isoxazole ring, was prepared by a 1,3-dipolar cycloaddition. The molecular structure is stabilized by an intramolecular N-H...O hydrogen bond.

Formula: C23H19N2O3P

Online February 2000


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