Acta Crystallographica Section C

Crystal Structure Communications

Volume 55, Part 10 (October 1999)

Cover illustration: A boron-containing estrogen mimic, see Robinson & Groziak, pages 1701-1704. Displacement ellipsoids are shown at the 50% probability level.

• cif-access (inorganic compounds)
• cif-access (metal-organic compounds)
• cif-access (organic compounds)
• inorganic compounds
• metal-organic compounds
• organic compounds

cif-access (inorganic compounds)

 

A potassium zinc phosphate hydrate, KZn(HPO₄)(H₂PO₄)^.H₂O

W. T. A. Harrison

Synopsis: Potassium zinc hydrogenphosphate dihydrogenphosphate hy- drate, KZn(HPO₄)(H₂PO₄) f vertex-sharing ZnO₄ and PO₄ groups. It is isostructural with NH₄Zn(HPO₄)(H₂PO₄)^.H₂O and RbZn(HPO₄)(H₂PO₄)^.H₂O.

Formula: KZn(HPO₄)(H₂PO₄)H₂O

 

A sodium zinc phosphate hydrate, Na₂Zn(H₂PO₄)₄^.4H₂O

W. T. A. Harrison

Synopsis: Disodium zinc tetrakis(dihydrogenphosphate) tetrahydrate, Na₂Zn(H₂PO₄)₄^.4H₂O, is built up from vertex-sharing octahedral NaO₆ and ZnO₆, and tetrahedral PO₄ building blocks. It is isostructural with Na₂Ni(H₂PO₄)₂^.4H₂O.

Formula: Na₂Zn(H₂PO₄)₄4H₂O

cif-access (metal-organic compounds)

 

Di--chloro-bis[tricarbonyl(dicyclohexylphosphine)rhenium]

U. Flörke

Synopsis: The title compound is a rare example of a crystallographically characterized twofold chloro-bridged dirhenium complex. The molecule shows a planar Re₂Cl₂ ring with Re-Cl bond lengths of 2.5316(12) and 2.5404(11)Å. The two dicyclohexylphosphine ligands attached to the Re atoms are in anti positions.

Formula: [Re₂Cl₂(C₁₂H₂₂P)₂(CO)₆]

 

Hexakis(tetraethylammonium) tri-₄-iodo-di-₃-iodo-hexakis[iodosilver(I)] iodide, (Et₄ N)₆[Ag₆I₁₁]I

Y. Zhao, W. Su, R. Cao and M. Hong

Synopsis: In the cluster anion, composed of six Ag^I atoms and 11 iodides, the Ag₆ core forms a trigonal prism. Each Ag^I atom has a distorted tetrahedral geometry. The average AgAg and Ag-I distances are 3.2005 (14) and 2.9377 (9) Å, respectively.

Formula: (C₈H₂₀N)₆[Ag₆I₁₁]I

 

cis,trans-Bis(acetonitrile-N)(2,2'-bipyridine-N,N')dichlororuthenium(II) hemihydrate

S. Huh, S. Park and A. J. Lough

Synopsis: The title compound contains two acetonitrile and 2,2^'-bipyridine molecules in the equatorial plane. Two mutually trans-positioned chloride ligands occupy the axial positions in an almost linear arrangement. A substantial number of intermolecular hydrogen-bond interactions mediated by a solvate water and several neighboring molecules are observed.

Formula: [RuCl₂(C₂H₃N)₂(C₁₀H₈N₂)]0.5H₂O

 

Tetraaquabis(4-pyridinecarboxylato-N)iron(II)

Q. Liu, Y. Wei, W. Wang and S. Zhang

Synopsis: The Fe atom lies on an inversion center with a distorted octahedral coordination geometry defined by two pyridine N atoms and four water O atoms. The crystal structure is stabilized by O-HO hydrogen bonds involving all the water H atoms and the carboxylate groups.

Formula: [Fe(C₆H₄NO₂)₂(H₂O)₄]

 

3-(Triphenylstannyl)propyl ethanoate

J. N. Low, G. Ferguson and J. L. Wardell

Synopsis: In MeC(O)O(CH₂)₃SnPh₃, the principal dimensions include Sn-Csp³ 2.150(2), Sn-C_aromatic 2.140(2)-2.145(2)Å and C-Sn-C 108.41(7)-110.50(7)°.

Formula: [Sn(C₆H₅)₃(C₅H₉O₂)]

 

4,5-Bis(ferrocenylmethylthio)-1,3-dithiole-2-thione

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

Synopsis: In [(C₅H₅FeC₅H₄)₂(C₅H₄S₅)], the values of the geometric parameters of the ferrocene and 1,3-dithiole-2-thione (dmit) moieties are within the normal ranges. There is an unusual thiol-S atom short contact [3.4889(18)Å] to a thione-S atom.

Formula: [Fe₂(C₅H₅)₂(C₁₅H₁₂S₅)]

cif-access (organic compounds)

 

5-Methyl-3-nonanoyl-1,3,4-thiadiazole-2(3H)-thione and 3-decanoyl-5-methyl-1,3,4-thiadiazole-2(3H)-thione

J. N. Low, A. Cook, C. T. Imrie and J. L. Wardell

Synopsis: The aliphatic chains of the title molecules, C₁₂H₂₀N₂OS, (I), and C₁₃H₂₂N₂OS, (II), align themselves parallel in the (101) crystallographic plane in both crystal structures.

Formula: C₁₂H₂₀N₂OS₂ and C₁₃H₂₂N₂OS₂

 

A cyclic dimer of ethyleneglycol maleate

S. P. Foxon, J. A. Semlyen and B. R. Wood

Synopsis: The title compound, 1,4,9,12-tetraoxacyclohexadeca-6,14-diene-5,8,13,16-tetraone, a cyclic dimer, was prepared using dilute-solution ring-chain trans-esterification reactions. The molecule has crystallographic twofold rotation symmetry and contains four ester groups linked by two planar ethylene and two staggered ethane units.

Formula: C₁₂H₁₂O₈

 

4,5-Dichloro-2-nitroaniline

D. Britton

Synopsis: The molecular structure of 4,5-dichloro-2-nitroaniline is normal. There is an intramolecular N-HO hydrogen bond. The molecules are held together in chains by intermolecular N-HO and C-HO hydrogen bonds.

Formula: C₆H₄Cl₂N₂O₂

 

Ethyl (E)-2-[benzyl(benzyloxycarbonyl)amino]-6,6-dimethylhept-2-en-4-ynoate

J. Canisius, M. Schürmann, H. Preut and N. Krause

Synopsis: The title compound is an enynoate bearing a protected amino group at the olefinic C atom next to the ester group. The amino group is protected with a benzyl and a benzyloxycarbonyl group. The compound belongs to the group of acetylenic Michael acceptors which react with organocuprate reagents in a 1,6-Michael addition to functionalized allenes. Bearing a protected amino group, the title compound could be a precursor in the synthesis of allenic -amino acids.

Formula: C₂₆H₂₉NO₄

 

The Diels-Alder adduct (3aS,7aR,4S)-1,3,3a,-4,5,7a-hexahydro-7-methyl-3-oxoisobenzofuran-4-carboxylic acid

M. A. Brewster, M. D. Carducci and J. D. Rainier

Synopsis: The title compound is a derivative of the major cycloaddition product of dimethyl fumarate and 3-methyl-(E)-2,4-pentadiene-1-ol. The structure determined confirms that the major cycloadduct arises from the expected endo transition state.

Formula: C₁₀H₁₂O₄

 

2,4,5-Triphenylspiro[pyrazolidine-3,3'-(4'-flavanone)]

R. Krishna, S. Shanmuga Sundara Raj, D. Velmurugan, H.-K. Fun, S. Manikandan and R. Raghunathan

Synopsis: In 3^',4^'-dihydro-2^',2,4,5-tetraphenylspiro[pyrazolidine-3,3^'-(2H-1-benzopyran)]-4^'-one, the pyrazolidine ring adopts an envelope conformation and the six-membered ring in the flavanone moiety adopts a sofa conformation. The spiro substitution of the pyrazolidine ring causes elongation of the bonds within the flavanone moiety.

Formula: C₃₅H₂₆N₂O₂

 

Methyl (SR)-8,10-dichloro-1,2,3,4,5,6-hexahydro-6-hydroxy-1-methyl-1,9-phenanthroline-6-carboxylate

T. K. Sarkar, S. Basak, S. K. Ghosh, G. D. Nigam, I. A. Razak, S. Shanmuga Sundara Raj and H.-K. Fun

Synopsis: In the title compound, the pyridine ring is planar. The central ring adopts a skew boat conformation where the methoxy carbonyl group is attached axially and the hydroxyl is attached equatorially. An O-HN hydrogen bond links the molecules into infinite chains.

Formula: C₁₅H₁₆Cl₂N₂O₃

 

Hedychenone from Hedychium Yunnanense Gagnep

X.-H. Liu, W. Wang, Z.-D. He, H.-Q. Wang, C.-R. Yang and B. Chen

Synopsis: The relative configuration of hedychenone (C₂₀H₂₆O₂), which is a furanoid diterpene from Hedychium Yunnanense Gagnep, has been identified by single-crystal X-ray diffraction.

Formula: C₂₀H₂₆O₂

 

Benzyl[3-(3-indenyl)propyl]ammonium bromide

L. F. Groux, F. Bélanger-Gariépy and D. Zargarian

Synopsis: The title compound is one in a series of new bidentate aminoindenyl ligands synthesized during the course of our studies on transition metal complexes bearing chelating indenyl ligands. We studied this compound in order to compare its parameters with those found in complexes wherein the indene and/or amine moieties are coordinated to a transition metal.

Formula: C₁₉H₂₂N⁺Br^-

 

(-)-(2S,3S,4S,5R,R_S)-1-tert-Butoxycarbonyl-3-hydroxy-5-(1(S)-{N-[(R)-1-hydroxy-3-methylbut-2-yl]-4-methylphenylsulfonimidoyl}ethyl)-4-methyl-2-phenylpyrrolidine at 133K

J. W. Bats, T. Heinrich and M. Reggelin

Synopsis: The structure of the title compound was determined at 133K to establish the absolute configuration of the chiral centers. The pyrrolidine ring has an envelope conformation. The molecule is stabilized by a weak bifurcated intramolecular hydrogen bond. The crystal packing consists of intermolecular O-HO and C-HO hydrogen bonds.

Formula: C₃₀H₄₄N₂O₅S

 

(+)-(2S,3S,4S,5S)-3-[3,5-Bis(trifluoromethyl)benzyloxy]-N-(tert-butoxycarbonyl)-4,5-dimethyl-2-phenylpyrrolidine, (I), and (+)-(2S,3S,4S,5S)-3-[3,5-bis(trifluoromethyl)benzyloxy]-4,5-dimethyl-2-phenylpyrrolidinium p-toluenesulfonate, (II), at 134K

J. W. Bats, T. Heinrich and M. Reggelin

Synopsis: The structures of (I) and (II) were determined at 134 K. The pyrrolidine rings have similar twist conformations in both compounds. Molecules of (II) are connected through intermolecular N-HO hydrogen bonds into zigzag chains. Both crystal structures contain weak intermolecular C-HO interactions. Compound (II) also shows intermolecular C-H_arene interactions.

Formula: C₂₆H₂₉F₆NO₃ and C₂₁H₂₂F₆NO⁺C₇H₇O₃S^-

inorganic compounds

 

Normal and inverse garnets: Ca₃Fe₂Ge₃O₁₂, Ca₃Y₂Ge₃O₁₂ and Mg₃Y₂Ge₃O₁₂

D. Lévy and J. Barbier

Synopsis: In the title compounds, the cation distributions correspond to a normal garnet structure for Ca₃^[8]Fe₂^[6]Ge₃^[4]O₁₂ and Ca₃^[8]Y₂^[6]Ge₃^[4]O₁₂, and to an inverse garnet structure for (MgY₂)^[8]Mg₂^[6]Ge₃^[4]O₁₂.

Formula: Ca₃Fe₂Ge₃O₁₂, Ca₃Y₂Ge₃O₁₂ and Mg₃Y₂Ge₃O₁₂

metal-organic compounds

 

A one-dimensionally extended chain aluminophosphate

K. Sugiyama, K. Hiraga, J. Yu, S. Zheng, S. Qiu, R. Xu and O. Terasaki

Synopsis: The title one-dimensionally extended chain aluminophosphate, ethylenediammonium bis(propane-1,3-diyldiammonium) dialuminium tetraphosphate, [NH₃(CH₂)₂NH₃][NH₃(CH₂)₃NH₃]₂[Al₂P₄O₁₆], contains infinite [AlP₂O₈]^3- chains composed of AlO₄ and PO₂(=O)₂ tetrahedra, held together via hydrogen bonds by two kinds of protonated amines.

Formula: (C₂H₁₀N₂)(C₃H₁₂N₂)₂[Al₂P₄O₁₆]

 

Bis(cyclohexane-1,3-dionato)-C²,O¹-(ethylenediamine-N,N')platinum(II) trihydrate and bis(cyclohexane-1,3-dionato)-C²,O¹-(N,N-dimethylethylenediamine-N,N')platinum(II)

H. Yuge and T. K. Miyamoto

Formula: [Pt(C₆H₇O₂)₂(C₂H₈N₂)]3H₂O and [Pt(C₆H₇O₂)₂(C₄H₁₂N₂)]

 

Sodium hydrogen trans-glutaconate and ammonium hydrogen trans-glutaconate

J. Taka and S. Kashino

Formula: Na⁺C₅H₅O₄^- and NH₄⁺C₅H₅O₄^-

 

A linear-chain silver(I) coordination polymer with tetrakis(isopropylthio)-p-benzoquinone

Y. Suenaga, T. Kuroda-Sowa, M. Maekawa and M. Munakata

Formula: [Ag(C₁₈H₂₈O₂S₄)]ClO₄C₃H₆O

 

Bis(imidazolidine-2-thione)gold(I) diiodoaurate(I)

S. Friedrichs and P. G. Jones

Formula: [Au(C₃H₆N₂S)₂][AuI₂]

 

Complexation of -thiocaprolactam with heavy metals: terminal and bridging coordination modes in cadmium and silver compounds

S. Bernès, J. C. Aguilar, E. Rodríguez de San Miguel Guerrero, M. E. Nuñez Gaytán and J. De Gyves

Formula: [Cd(NO₃)₂(C₆H₁₁NS)₄] and [Ag₄(C₆H₁₁NS)₈](NO₃)₄

 

Bis[(2-chloroethyl)diisopropylammonium] tetrachlorocobaltate(II)

A. H. Mahmoudkhani and V. Langer

Formula: (C₈H₁₉ClN)₂[CoCl₄]

 

Bis(-acetato){-2,6-bis[(2-hydroxybenzyl)-(2-pyridylmethyl)aminomethyl]-4-methylphenolato}diindium(III) nitrate dihydrate

A. J. Bortoluzzi, A. Neves, I. Vencato, C. Zucco and M. Hörner

Formula: [In₂(C₃₅H₃₃N₄O₃)(C₂H₃O₂)₂]NO₃2H₂O

 

The twinned structure of the -isopropoxidodiisopropoxido(p-tolylimido)vanadium(V) dimer, twin refinement against CCD area-detector data

M. Lutz, H. Hagen, A. M. M. Schreurs, A. L. Spek and G. van Koten

Formula: [V₂(C₇H₇N)₂(C₃H₇O)₆]

 

Diiodobis(4-methoxybenzaldehyde thiosemicarbazone-S)cadmium(II)

Y.-P. Tian, W.-T. Yu, M.-H. Jiang, S. Shanmuga Sundara Raj, P. Yang and H.-K. Fun

Formula: [CdI₂(C₉H₁₁N₃OS)₂]

 

Dichlorobis(dimethylformamide-O)bis(4-nitrobenzaldehyde thiosemicarbazone-S)cadmium(II)

Y.-P. Tian, J.-Y. Wu, F.-X. Xie, S. Shanmuga Sundara Raj, P. Yang and H.-K. Fun

Formula: [CdCl₂(C₃H₇NO)₂(C₈H₈N₄O₂S)₂]

 

Bis[2-(phenylazo)imidazole-N]silver(I) nitrate methanol solvate

S. Shanmuga Sundara Raj, H.-K. Fun, X.-F. Chen, X.-H. Zhu and X.-Z. You

Formula: [Ag(C₉H₈N₄)₂]NO₃CH₄O

 

Dibromo[propane-1,3-diylbis(diphenylphosphine)-P,P']palladium(II)

J. M. Vila, J. M. Ortigueira, M. López, J. J. Fernández and A. Fernández

Formula: [PdBr₂(C₂₇H₂₆P₂)]

 

trans-Bis(N,N-diethylethylenediamine-N,N')dioxorhenium(V) chloride trihydrate

H. P. Engelbrecht, S. Otto and A. Roodt

Formula: [ReO₂(C₆H₁₆N₂)₂]Cl3H₂O

 

[N,N'-Bis(5-bromosalicylidene)-1,3-diaminopropane]copper(II)

M. Kabak, A. Elmali, E. Kavlakoglu, Y. Elerman and T. N. Durlu

Formula: [Cu(C₁₇H₁₄Br₂N₂O₂)]

 

Bis{(-nitrato)[-bis(salicylidene)-1,3-propanediaminato]copper(II)}zinc(II)

D. Ülkü, L. Tatar, O. Atakol and S. Durmus

Formula: [ZnCu₂(C₁₇H₁₆N₂O₂)₂(NO₃)₂]

 

Aqua[N,N'-bis(salicylidene)-1,3-propanediaminato]copper(II)

C. Arici, F. Ercan, O. Atakol and O. Cakirer

Formula: [Cu(C₁₇H₁₆N₂O₂)(H₂O)]

 

Transition metal complexes with thiosemicarbazide-based ligands. XXXIX. [Benzoylacetone 3-methylisothiosemicarbazonato(2 -)-O,N¹,N⁴](pyridine-N)nickel(II)

G. A. Bogdanovic, A. Spasojevic-de Biré, V. M. Leovac and V. I. Cesljevic

Formula: [Ni(C₁₂H₁₃N₃OS)(C₅H₅N)]

 

Dichloro[(cyclopentadienyl)tris(dimethylphosphito-P)cobalt(III)-O,O',O'']oxomolybdenum(V)

S.-G. Roh and J. H. Jeong

Formula: [CoMo(C₅H₅)(C₂H₆O₃P)₃Cl₂O]

 

Trimethylgermylethyl p-nitrobenzoate

J. M. White

Formula: [Ge(CH₃)₃(C₉H₈NO₄)]

 

[La(NO₃)₂(Ph₃PO)₄]₂[Ni(C₄N₂S₂)₂]^.2CH₃OH

D.-L. Long, H.-M. Hu, J.-T. Chen and J.-S. Huang

Formula: [La(NO₃)₂(C₁₈H₁₅OP)₄]₂[Ni(C₄N₂S₂)₂]2CH₄O

 

Tetraphenylarsonium diazidotriphenylstannate

F. Benetollo, G. Bombieri, G. Alonzo and N. Bertazzi

Formula: [As(C₆H₅)₄][Sn(C₆H₅)₃(N₃)₂]

organic compounds

 

8-Isopropyl-7,10-dimethoxy-3-phenyl-1-oxa-2,6,9-triazaspiro[4.5]deca-2,6,9-triene

M. Nieger and M. Bolte

Formula: C₁₇H₂₁N₃O₃

 

1-(2,4-Dinitrophenyl)-3-(2-hydroxyphenyl)-1H-pyrazole-4-carbaldehyde

S. Shanmuga Sundara Raj, J. Jeyakanthan, S. Selvi, D. Velmurugan, H.-K. Fun and P. T. Perumal

Formula: C₁₆H₁₀N₄O₆

 

5-Amino-4-(4-methoxyphenyl)-2-phenyl-7-(pyrrolidin-1-yl)-1,6-naphthyridine-8-carbonitrile

R. Sankaranarayanan, S. Shanmuga Sundara Raj, D. Velmurugan, H.-K. Fun, V. Raghukumar and V. T. Ramakrishnan

Formula: C₂₆H₂₃N₅O

 

N-(4-Chloro-2-iodophenyl)-N-methylcinnamamide

S. Renganayaki, E. Subramanian, S. Shanmuga Sundara Raj and H.-K. Fun

Formula: C₁₆H₁₃ClINO

 

1-Acetyl-2a',3',8',8a'-tetrahydro-3',8'-(diphenylmethylenemethano)spiro[indoline-3,2'-2'H-oxeto[3,2-b]naphthalen]-2-one

S. Shanmuga Sundara Raj, H.-K. Fun, J. Xue, J.-H. Ye, H. Cai and J.-H. Xu

Formula: C₃₄H₂₅NO₃

 

1',2',3',4'-Tetrahydro-1,3-diphenyl-4-p-tolylspiro[2-pyrazoline-5,2'-naphthalen]-1'-one

R. Krishna, D. Velmurugan, R. Murugesan, M. Shanmuga Sundaram and R. Raghunathan

Formula: C₃₁H₂₆N₂O

 

(+)-23,24-Dinor-3,9-epoxy-11-oxo-5-cholan-22-oic acid: mutual carboxyl-to-ether dimeric hydrogen bonding in a steroidal carboxy-keto ether

H. W. Thompson, A. P. J. Brunskill and R. A. Lalancette

Formula: C₂₂H₃₂O₄

 

(+)-3-Oxoandrosta-1,4-diene-17-carboxylic acid: catemeric hydrogen bonding in a steroidal keto acid

H. W. Thompson, R. A. Lalancette and A. P. J. Brunskill

Formula: C₂₀H₂₆O₃

 

2-Chloro-6-hydroxypyridinium chloride hydrate

M. Freytag and P. G. Jones

Formula: C₅H₅ClNO⁺Cl^-H₂O

 

1,10-Decanediol

N. Nakamura and T. Sato

Formula: C₁₀H₂₂O₂

 

1,14-Tetradecanediol

N. Nakamura and T. Sato

Formula: C₁₄H₃₀O₂

 

4-Ethoxy-N-(6-methylquinolin-2-ylmethylene)aniline

M. Aygün, S. Isik, Z. Turgut, S. Özbey and E. Kendi

Formula: C₁₉H₁₈N₂O

 

4-Chloro-2-(4-oxopent-2-en-2-ylamino)phenol

C. Arici, M. N. Tahir, D. Ülkü and O. Atakol

Formula: C₁₁H₁₂ClNO₂

 

`Push-pull' effects in nitroethenamines

A. Linden, D. Moya Argilagos, H. Heimgartner, M. I. García Trimiño and A. Macías Cabrera

Formula: C₄H₈N₂O₂S, C₁₂H₁₄N₄O₃S, C₁₆H₂₀N₄O₃S and C₂₄H₂₂N₄O₃S

 

6,7,8,9-Tetrahydro-3-methyl-1H-pyrano[4,3-b]quinolin-1-one

D. H. Hua, Y. Chen, H.-S. Sin, P. D. Robinson, C. Y. Meyers, E. M. Perchellet, J.-P. Perchellet, P. K. Chiang and J.-F. Biellmann

Formula: C₁₃H₁₃NO₂

 

A boron-containing estrogen mimic

P. D. Robinson and M. P. Groziak

Formula: C₁₃H₁₂BN₃O₃H₂O

 

A zwitterionic Meisenheimer complex of 2,4,6-trinitrobenzene

O. Ya. Borbulevych, O. V. Shishkin and V. N. Knyazev

Formula: C₁₄H₁₂N₄O₈

 

Four N-(2-hydroxybenzylidene)aniline derivatives

J. Burgess, J. Fawcett, D. R. Russell, S. R. Gilani and V. Palma

Formula: C₁₃H₁₀FNO, C₁₄H₁₀F₃NO₂, C₁₃H₉Cl₂NO and C₁₃H₁₀N₂O₃

 

(-)-Sparteinium bromide

A. Farina, S. V. Meille, M. T. Messina, P. Metrangolo and G. Resnati

Formula: C₁₅H₂₇N₂⁺Br^-

 

The absolute configuration of sertraline (Zoloft) hydrochloride

F. Caruso, A. Besmer and M. Rossi

Formula: C₁₇H₁₈Cl₂N⁺Cl^-

 

1:2 Complexes of chloranilic acid with pyrimidine and pyrazine

H. Ishida and S. Kashino

Formula: Two complexes of 2C₄H₄N₂C₆H₂Cl₂O₄

 

Bis(epi-globulyloxy)(phthalocyaninato)silicon, a new photosensitizer for the photodynamic therapy of cancer

R. Decréau, M. Julliard and M. Giorgi

Formula: C₆₂H₆₆N₈O₂Si

 

Methyl -lactoside (methyl 4-O--D-galactopyranosyl--D-glucopyranoside) methanol solvate

R. Stenutz, M. Shang and A. S. Serianni

Formula: C₁₃H₂₄O₁₁CH₄O

 

4-Methylbicyclo[6.3.0]undecane-2,6-dione, (I), 7-bromo-4-methylbicyclo[6.3.0]undecane-2,6-dione, (II), 7-acetonyl-4-methylbicyclo[6.3.0]undecane-2,6-dione, (III), and 8-methyltricyclo[9.3.0.0^2,6]tetradec-5-ene-4,10-dione, (IV)

M. Umehara, H. Hosomi and S. Ohba

Formula: C₁₂H₁₈O₂, C₁₂H₁₇BrO₂, C₁₅H₂₂O₃ and C₁₅H₂₀O₂

 

7-Phenyl-2,3,4,5-tetrahydro-1H-1,4-diazepin-5-one

B. A. J. Clark, M. C. Evans, D. Lloyd, H. McNab and S. Parsons

Formula: C₁₁H₁₂N₂O

 

N-(6-Amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl)methionine

J. N. Low, M. L. Godino, R. López, A. Pérez, M. Melguizo and J. Cobo

Formula: C₁₀H₁₅N₅O₄S

 

Triterpenoide. XVI. 2-Formylderivate des Oleanonsäure-methylesters und Allo-betulons

A. Gzella

Formula: C₃₂H₄₈O₄ und C₃₁H₄₈O₃

 

Novel compounds from 1,2-indanedione and 3,5-dimethoxyaniline

B. Taylor, P. J. Carroll and M. M. Joullié

Formula: C₃₄H₂₈N₂O₆ and 2C₄₃H₃₄N₂O₇2CH₂Cl₂

 

4-O-Benzyl-2,3-O-isopropylidene--L-rhamnopyranose

L. Eriksson, P. Söderman and G. Widmalm

Formula: C₁₆H₂₂O₅

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