bluuebunny/crossref_metadata_2025_split huggingface dataset:
Quantitative „in vivo“-Untersuchungen zur Spezifität der Herabsetzung der 131J-Gesamtkörper-Retention durch Inhibitoren der Jodid-lnkorporierung
Authors: Heinrich H. C. , Gabbe E. E. 
Published: August 2018

An Ratten wurde die Strukturspezifität der Hemmung der 131J⊖-Inkorporierung und Konzentrierung durch äquimolare Mengen (0,1 mMol) monovalenter Anionen quantitativ und „in vivo“ über die Kinetik der 131J-Gesamtkörper-Retention ermittelt. Die Messung der 131J-Gesamtkörper· Retention erfolgte in einem Großraum-Radioaktivitäts-Detektor mit flüssigen organischen Szintillatoren. Der nach Erreichen des Stoffwechsel-Gleichgewichtes des resoibierten 131J— im Gesamtkörper-Jod-Pool mit der konstant bleibenden biologischen Halbwertszeit des organisch gebundenen Jods (~ 10 Tage) umgesetzte Anteil der verabfolgten 131J-Testmenge, der sogenannte 131J-Markierungs-anteil des organisch gebundenen Jod-Pools, ist ein geeignetes Bezugssystem für die Dimensionierung des Inhibitoreffektes monovalenter Anionen auf die 131J⊖-Inkorporierung und Konzentrierung.
Wird der theoretisch mögliche Hemmeffekt gleich —100% gesetzt, so erwiesen sich die JO4
⊖-(-91%), JO3
⊖. (-92%) und ClO4
⊖-(-96%)-Ionen als stark wirksame, das SCN⊖ (-70%) als mittelstarker und die NO3
⊖- (— 28%) und ClΟ3
⊖ ( — 30%)-Ionen als schwache Inhibitoren der intravitalen Jodid-Inkorporierung und Konzentrierung. Keines der untersuchten monovalenten Ionen setzte jedoch den Markierungsanteil des organisch gebundenen Jod-Pools und damit die 131J-Gesamtkörper-Retention stärker herab als eine äquimolare Menge Jodid ( — 97%), die zu einer weitgehenden Sättigung der Jodid-Inkorporierungs- und Konzentrierungs-Mechanismen führt.
„Trommeln” als Verständigungsmittel bei Steinfliegen (Plecoptera)
Authors: Rupprecht Rainer 
Published: August 2018

Männchen und unbefruchtete Weibchen verschiedener Perlidenarten verständigen sich durch Trommeln. Die Frequenz der Trommelstöße wird bei Capnia bifrons und Perla marginata bestimmt.
Die Übertragung des Trommelstoßes erfolgt nicht durch Schall (auf dem Luftwege), sondern durch die Erschütterung der Unterlage. Nicht nur diese drei Arten, deren Trommeln bei den Männchen schon früher beschrieben wurde, sondern auch Perla marginata und Isoperla grammatica erzeugen in gleicher Weise Geräusche.
VI. Chemical investigations of the lidien species Alectoria nigricans (ACH.) Nyl. and Parmelia alpicola Th. Fr.
Authors: Solberg Yngve Johannes 
Published: August 2018

Parmelia alpicola Th. Fr. and Alectoria nigricans (Ach.) Nyl. have been chemically investigated with special regard to their content of lichen substances. Both the species have been found to contain Alectorialic acid as the main compound and probably Thamnolic acid in trace amounts. In addition to these two acids, mannitol and a tetrahydroxy fatty acid have been isolated from Parmelia alpicola. Further-more three unidentified substances have been detected in the same lichen species by paper chromatographic separation.
Alectorialic acid was identified as a depside aldehyde and most likely as a mixed orcinol and β-orcinol derivate. The depside was hydrolysed and the aldehyde-component was found to be Atranol.
Isotope Effects of Uranium by Ion Exchange in the System Dowex 50 / α-Hydroxyisobutyrate
Authors: Aaltonen Jorma , Heumann Klaus G. , Pietilä Pikka 
Published: August 2018

In this investigation the isotope effect of uranium in the system Dowex 50 resin/ α- hydroxyisobutyrate solution was studied by mass spectrometry. A recycle ion exchange column was used for the separation experiments. The dependence of the isotope effect on the pH value and on the concentration of the α-hydroxyisobutyrate solution used as eluent was investigated. In the case of a 0.07 ᴍ and a 0.22 ᴍ α-hydroxyisobutyrate solution the elementary separation factor of uranium was calculated to be 1.00019 and 1.00006, respectively. In both cases an enrichment of 235U in relation to 238U was found in the solution.
In addition the distribution factor of the uranyl ions in the investigated system was determined in the pH range between 2 and 6. The distribution factor depends strongly on the pH value. With increasing pH values the distribution factor decreases.
The results obtained for the elementary separation factor and the distribution factor are compared with other investigations.
Additionsprodukt aus Aminodiimino- und Triaminoiminophosphoran: Ein acyclisches Di(phosphazan)-Betain / Addition Product of Aminodiimino- and Triaminoiminophosphorane: an Acyclic Di(phosphazane)betaine
Authors: Halstenberg Mechthild , Appel Rolf , Huttner Gottfried , Seyerl Joachim v. 
Published: August 2018

Abstract
Addition of permethylated triaminoiminophosphorane to silylated aminodiiminophosphorane yields an acyclic di(phosphazane)betaine. The structure was determined by X-ray crystallography.
Complexes of 1,2,4-Triazoles, VII [1]. Preparation and Vibrational Spectra of 4,4’-Bi-1,2,4-triazole and Some of its Complexes with Transition Metal(II) Thiocyanates
Authors: Haasnoot Jaap G. , Groeneveld Willem L. 
Published: August 2018

Abstract
The preparation and characterization of 4,4′-bi-1,2,4-triazole is described. The compound is a strong, polydentate, polynucleating nitrogen donor. Two complexes, M(btr)2(NCS)2H2O M=Co, Ni, are described. The vibrational spectra of ligand and complexes are compared. A structure for the complexes is proposed.
Bile Pigment Structures, III. Crystal and Molecular Structure of Diethoxybilirubin Diethyl Ester
Authors: Sheldrick William S. , Becker Wulf 
Published: August 2018

Abstract
Diethoxybilirubin diethyl ester crystallises triclinic P1 with a = 13.903(5), b = 17.211(7), c = 9.831(5) Å, α= 110.07(3), β = 111.22(3), γ = 69.04(3)°, Z = 2, Dx - 1.15 gcm-3. The two pyrromethene systems of the tetrapyrrole are orientated almost perpendicular to one another (interplanar angle = 91.5°). Considerable bond delocalisation is observed within the individual pyrromethene units, which contain intramolecular N-H···N hydrogen bonds of length 2.73 and 2.80 Å. Parallel stacking of the chromophores is not observed in the crystal lattice.
Furanoid Diterpenes in the Bitter Fraction of Teucrium polium L.
Authors: Malakov Peter Y. , Papanov Georgi Y. , Mollov Nikola M. 
Published: August 2018

Abstract
Three known furanoid diterpenes Teucrin P1 (2), Teucrin H3 (3) and Montanin B (4) have been isolated for the first time from the bitter fraction of the aerial parts of Teucrium polium L. In addition two new diterpenes of this type Teupolin I (5) and Teupolin II (6) have been also found in the plant extract. The structure and stereochemistry were established using spectral methods and chemical evidence.
Synthesen mit Nitrilen, LVII [1]. Zur Reaktivität von Aminomethylen-malonsäuredinitrilen gegenüber Aldehyden und Orthoestern / Syntheses with Nitriles, LVII [1]. The Reactivity of Aminomethylene-malononitriles with Aldehydes and Orthoesters
Authors: Mittelbach Martin , Junek Hans 
Published: August 2018

Abstract
Condensation of aminomethy lene-malononitrile (1a) with aromatic aldehydes and dimethylformamide-dimethylacetal, resp., leads to benzylidene-malononitriles (2a, b) and to dimethylaminomethylene-malononitrile (2e), resp. A mechanism of this cleavage of a C=C double bond is discussed. Several substituted enaminonitriles (1e-i) are prepared and the reactivity against aldehydes is studied. Thus, condensation of 3-Amino-2-cyano-crotononitrile (1e) with aldehydes leads to 2-amino-4-phenyl-1,3-butadiene-1,1-dicarbo-nitriles (3). 4-Oxo-2-phenyl-1,2,3,4-tetrahydro-5-pyrimidine-carbonitriles (4) are yielded by the reaction of 3-amino-2-cyano-crotonic-carboxamide (1h) and 3-amino-2-cyano-cinnamamide (1i), resp., with aldehydes. Condensation of 1h and 1i with ethyl ortho-formate leads to 3,4-dihydro-4-oxo-pyrimidine-carbonitriles (6).
Reaktionen von Isochinolinium-Salzen mit Alkoholaten / Reactions between Isoquinolinium Salts and Aleoxides
Authors: Gündel Wolf-H. , Berenbold Helmut 
Published: August 2018

Abstract
Quaternary isoquinolinium salts react with an equivalent amount of anionic bases to a cyclocondensate (3), which has lipophilic properties. Other carboxamides insert after deprotonation by potassium tert-butoxide the isoquinolinium ring, too. The resulting product 5 is stable. Aluminium-triisopropoxide can reduce substituted isoquinolinium salts. 3 and 5 react with 2-propanol and ZnCl2 to give first a solution of isoquinolinium iso-propoxide and then in a redoxreaction the corresponding 1,2-dihydroisoquinoline. That are modelreactions for the enzymatically catalyzed alcoholoxidation by the coenzyme NAD+.
Beiträge zur Chemie der Pyrrolpigmente, XXXIV [1]. Über die Konfiguration und Konformation von diastereomeren N-Methyl-O-methyl-bilatrienen-abc / On the Chemistry of Pyrrole Pigments, XXXIV [1] On the Configurations and Conformations of Diastereomeric N-Methyl-O-methyl-bilatrienes-abc
Authors: Falk Heinz , Thirring Klaus 
Published: August 2018

Abstract
Methilation of the aetiobiliverdin-IV-γ-lactimether yields a lactam-N-methylated derivative the structure of which was proven by an ether cleavage and 1H NMR spectroscopy. The configuration (Z,Z,Z) was deduced from 1HNMR experiments. Photo-isomerization exclusively forms the (E,Z,Z) diastereomer. By conformational analysis using the LIS technique and correlations of UV-VIS spectra and PPP-type calculations a more or less helical arrangement for the two diastereomers was confirmed. The twisting is maximal at the methine single bond adjacent to the site of N-methylation, the overall geometry seems to be much more distorted than the non methylated derivatives.
Bis(diazadien)metall(O)-Komplexe, III. Nickel(O)-bis(chelate) mit aliphatischen N-Substituenten/ Bis(diazadien)metal(O) Complexes, III. Nickel(O)-bis(chelates) with Aliphatic N-Substituents
Authors: Svoboda Michael , Dieck Heindirk tom , Krüger Carl , Tsay Yi-Hung 
Published: August 2018

Abstract
Diazadienes (DAD)

(with R1, R2 = H, CH3 and R3, R4 = alkyl) form nickel complexes 1-14 with composition (DAD)2Ni. They can be prepared by ligand substitution from other Ni(O) compounds or, preferably, by the reduction of Ni(II) salts in the presence of DAD. Spectroscopic differences (NMR, UV) indicate different structures (type 1 and 2) for diamagnetic (DAD)2Ni of same composition, depending on substituents R1-R4. The steric requirement of R3, R4 is most important as the main differences show up when going from tertiary (type 1: R2CH-N = ) to secondary a-carbon (type 2: RCH2-N = ) . X-ray analysis of a type 1 complex (R1, R2 = H, R3, R4 = cyclo-hexyl) reveals two strictly orthogonal chelate rings (D2d) corresponding to (pseudo-)tetrahedrally coordinated Nickel(O). A D2-structure with smaller dihedral angle is discussed for type 2 complexes.
Zur McLafferty-Umlagerung bei Radikalkationen von Phenylpyridylalkanonen/ On the McLafferty Rearrangement of Ionized Phenyl Pyridyl Alkanones
Authors: Richter Bernd , Schwarz Helmut 
Published: August 2018

Abstract
A detailed investigation concerning the genesis of McLafferty rearrangement products from molecular ions of phenyl pyridyl alkanones reveals the following features: 1) The various products are not formed by competitive dissociations of the molecular ion. Most of the relevant fragment ions are generated from the primary McLafferty product of a hydrogen transfer to the ionized carbonyl group (M+·→m/z 163, ion k). The ion k plays a decisive role for the generation of the abundant product ions at m/z 93 (ion g) and m/z 106 (ion s) both of which are formed by further dissociation of k. Details of the mechanisms for the decomposition of k are obtained by investigating [D]-labelled isotopomers, the analysis of low and high resolution data, the application of MIKE and CA spectra. The problem of keto/enol tautomerism between some ions, relevant in this context, is discussed and it is shown that these isomerization processes are not involved. A detailed description is given for the syntheses of various [D]-labelled phenyl pyridyl alkanones.
The Structure of a 2:1 Host Guest Complex between p-Nitroaniline and 18-Crown-6
Authors: Weber Gabriela 
Published: August 2018

Abstract
The crown and two nitroaniline molecules are linked by four N-H ··· O interactions leaving the cyclic ether in a strain free conformation of approximate D3d symmetry. Partial disorder of one O atom facilitates one more H bond but induces considerable conformational strain in the ligand.
Darstellung und Charakterisierung der Chloro-Bromo-Iridate(III) und -(IV) einschließlich der Stereoisomeren / Preparation and Characterisation of Chloro-Bromo-Iridates(III) and -(IV) Including Stereoisomers
Authors: Preetz W. , Steinebach H.-J. 
Published: August 2018

Abstract
The mixed chloro-bromo complexes [IrClnBr6-n]2- and [IrClnBr6-n]3-, n = 1 - 5. were separated by ion exchange chromatography on diethylaminoethylcellulose. Due to the stronger trans-effect of Br compared with Cl, on treatment of [IrBr6]2- 3- with Cl- nearly pure cis/fac-isomers and by reaction of [IrCl6]2,3- with Br- trans/mer-isomers for n = 2,3,4 were formed. The stereoselectivi­ty of successive ligand exchange reactions is better for the Ir(III) than for the Ir(IV) system. The diamagnetic Ir(III) and the paramagnetic Ir(IV) complexes can be interconverted reversibly by redox reactions at low temperature. As shown by cyclic voltammetric measurements, the redox potentials within the series [IrClnBr6-n]2- 3- are linearly dependent on n. In aqueous solution the normal potentials are in the range of Eo = 0.838 V ([IrBr6]2-,3-) to Eo = 0.908 V ([IrCl6]2-,3-). The vibrational spectra of the mixed ligand complexes are assigned according to point groups D4h, C4v, C3v and C2v. They are similar for corresponding chloro-bromo-iridates, but distinguished by a shift of 10-25 cm-1 to higher wave numbers for most of the stretching vibrations going from Ir(III) to Ir(IV).
Preparation and Crystal Structure of a New Mixed Valence Cerium Germanate Ce2
4+ C8
3+ [GeO4 ]3[Ge2O7 ]2[Ge3 O10]
Authors: Becke U. W. , Felsche J. , Huttner G. , Scheidsteger O. 
Published: August 2018

Abstract
Opaque blue crystals of a new mixed valence cerium germanate have been prepared at elevated temperatures (1555 K) under careful thermoanalytical control. Single crystal structure analysis shows three different types of germanate anions [GeO4]4-, [Ge2O7]6- and [Ge3O10]8-, all ger­manium atoms being in tetrahedral coordination. Due to the larger number of oxygens per unit cell (Ce2Ge2O7.2), with all the oxygens unambiguously located by X-ray single crystal structure analysis, this phase differs significantly from the corresponding cerium(III) germanate Ce2Ge2O7, which shows [GeO4]4- and [Ge3O10]8-, but no [Ge2O7]6- ditetrahedral groupings.
Über die Umsetzung von Polysulfiden mit Stickstoffmonoxid in nichtwäßrigen Lösungsmitteln — Nitrosodisulfide / The Reaction of Polysulfides with Nitrogen Monoxide in Non-Aqueous Solvents — Nitrosodisulfides
Authors: Seel F. , Wagner M. 
Published: August 2018

Abstract
Polysulfides dissolved in non-aqueous solvents react under anaerobic conditions with nitric oxide to yield solutions of nitrosodisulfides. Through the action of NO upon (PNP)2S12 1 [P = P(C6H5)3] in acetone a stable compound PNP · SSNO 2 could be obtained. 2 proved to be identical with a red PNP-salt which had been isolated as a product of the reaction of PNP·NO2 with sulfur in acetone, hitherto taken for PNP · SSNO2. Clearly the product 3 of the action of triphenylphosphane upon 2 has to be regarded as PNP·SNO.
Bisphosphit-substituierte Olefinwolfram-Komplexe / Bisphosphite Substituted Olefintungsten Complexes
Authors: Berke Heinz , Sontag Christoph 
Published: August 2018

Abstract
Carbonyl Olefin Complexes, Phosphite Substitution The four-step syntheses -starting with hexacarbonyltungsten -of symmetrically and asymmetrically substituted trans-bisphosphite-mer-tricarbonyltungsten complexes, (OC)3 LL′(olefin)W, L = P(OMe)3 , L′ = P(OMe)3 or P(OEt)3 , olefin = ethylene, methylmaleate, methylfumarate, methylacrylate (4a-4e), are reported.
Studies on the Structure of β-Chitin
Authors: Akhtar Naheed , Haleem M. A. 
Published: August 2018

Abstract
Parallel chain system for the structure of β-chitin is studied from a stereochemical point of view and the structure has been refined by least squares procedures. As a first step correct atomic positions representing standard configuration of glucopyranose ring, peptide unit and CH2OH group have been redetermined in the unit cell. The unit cell is monoclinic with dimen­sions a = 4.85 Å, b = 10.38 Å (fibre axis), c = 9.26 Å and β = 97.5°. The space group is P21. The refinement has been done using five geometrical parameters, temperatur factor and the scaling factor. The R and Ø-value are found to be 0.235 and 37.61, respectively. The refined structure is found to be free from all short contacts. The refined chains form interhydrogen bond of the type N - H · · · O7= C7 and intrahydrogen bond of the type O5 - H · · · O3. The present calculations suggest that an intra-sheet O6a -H - O7 hydrogen bond cannot be formed in the present structure. This behaviour will certainly explain the different properties of β-chitin hav­ing less number of hydrogen bonds as compared to a-chitin.
ab initio-Rechnungen zur Tautomerie, Acidität und Basizität von 1-MethyIpyrazolin- 2-on-5 und seinen Schwefel und Selen Analogen / ab initio Calculations of the Tautomerism, the Acidity and the Basicity of 1-Methyl- pyrazoline-2-one-5 and the Corresponding Sulphur and Selenium Analogs
Authors: Tschmutova Galina , Ahlbrecht Hubertus 
Published: August 2018

Quantum chemical calculations on the title compounds have been performed at different levels of theory in order to obtain a reasonable model capable of treating even larger systems with reliable results. The HF/6-31G*//PM3 model is shown to describe the cations reasonably well as compared to the corresponding ab initio results. The anions and neutral compounds yield reasonable results at the HF/ 6-31+G*//PM3 level. In the case of the oxygen compound the CH form is predicted to be the most stable tautomer at all levels of theory. The CH and the XH tautomer become energetically similar for the sulphur and selenium compounds, and the relative stability depends on the model used. All methods predict the acidity to increase in the order O<S<Se. Differences in basicity are not so pronounced. The most stable cation is always the N-protonated XH tautomer and is followed by the X-protonated CH tautomer. All other cations are calculated to be clearly higher in energy.
The conformation of the XH bond depends on the nature of the heteroatom. Whereas the oxygen compounds prefer a coplanar orientation with respect to the ring plane, the selenium compounds strongly tend to rotate the XH bond out of the plane into a nearly perpendicular position. Both conformations are found for sulphur compounds.
Quaternary Equiatomic Manganese Pnictide Oxides AMnPO (A = La-Nd, Sm, Gd-Dy), AMnAsO (A = Y, La-Nd, Sm, Gd-Dy, U), and AMnSbO (A = La-Nd, Sm, Gd) with ZrCuSiAs Type Structure
Authors: Nientiedt Andre T. , Jeitschko Wolfgang , Pollmeier Peter G. , Brylak Markus 
Published: August 2018

Abstract
The 24 title compounds were prepared in well crystallized form by reaction of the rare earth elements (or uranium, respectively), manganese, the pnictide components, and MnO2 in a NaCl/KCl flux. They crystallize with the tetragonal ZrCuSiAs type structure (P4/nmm, Z = 2), which has been refined from single-crystal X-ray data of NdMnPO (a = 398.9(1), c = 867.4(1) pm, R = 0.026), NdMnAsO (a = 404,9(2), c = 889.3(4) pm, R = 0.025), and NdMnSbO (a = 416.5(1), c = 946.2(2) pm, R = 0.021) for 107, 190, and 124 structure factors, respectively, and 11 variable parameters each. Chemical bonding in these compounds is briefly discussed.
Synthese und Röntgenstrukturanalyse von [Fe(η6-C6H4{1,3-(CH3)2})(η5 -C5(C6H5)5]+ [FeCl4]- / Synthesis and X-Ray Structure Analysis of [Fe(η6-C6H4{1 ,3 -(CH3)2})(η5-C5(C6H5)5]+ [FeCl4]-
Authors: Schumann Herbert , Lentz Alexander , Weimann Roman 
Published: August 2018

Abstract
Fe[C5(C6H5)5](CO)2Br (1) reacts with m-xylene at 80°C followed by hydrolysis with diluted HCl in the presence of air, to give [Fe(η6-C6H4{1,3-(CH3)2})(775-C5(C6H5)5)]+[FeCl4]- (3). The 1H, 13CNMR and mass spectra as well as the single crystal X-ray diffraction analysis confirm the proposed sandwich cation structure. 3 crystallizes in the space group P 21/n with a = 984,0(1), b = 2201,0(7), c = 1684,9(2) pm, β = 91,94(1)° and V = 3647(1) x 10-30m3. The final refinement resulted in R = 0,054 for 2982 observed reflections with F0 ≥4σ (F0)
Synthese und Kristallstruktur von 7-Azaindolato-Silber, einem dimeren Ag(I)-Komplex mit kurzem Ag-Ag-Abstand
Authors: Beck J. , Reitz M. 
Published: August 2018

Abstract
[Ag(C7H5N2)]2 is obtained by the slow addition of a tetrahydrofuran (thf) solution of AgClO4 to a solution of Na(C7H5N2) in thf. The slightly yellow compound crystallizes in the monoclinic space group P21/n with the lattice constants a = 554.5(1) pm, b = 954.6(2) pm, c = 1196.5(3) pm, β = 99.67(2)°. The structure consists of centrosymmetric, planar, dimeric complexes with ligand disorder in the crystal. The N atoms coordinate the Ag+ ions nearly linearly (N-Ag-N = 168°, Ag-N = 213 pm). The Ag+ ions in the dimeric unit have a short distance of 284 pm. The complexes are linked by weak intermolecular η2-Ag-C interactions to chains.
Zum Mineral Johillerit verwandte Oxovanadate RbCd4V3O12 und TlCd4V3O12 / Oxovanadates RbCd4V3O12 and TlCd4V3 O12 Related to the Mineral Johillerite
Authors: Mertens B. , Müller-Buschbaum Hk. 
Published: August 2018

Abstract
Single crystals of I RbCd4V3O12 and TlCd4V3O12 II have been prepared by solid state reactions in closed iron tubes. The compounds crystallize closely related to the Johillerite structure in the space group C6
2h- C2/c with I: a = 13.058(3); b - 13.528(3), c = 7 .0 6 0 (2 )Å , β = 114.88(2)°; II: a = 12.999(6), b = 13.527(7), c = 7.055(3) Å , β = 114.88(4)°, Z = 4. Special features are the loss of Cu2+ in order to gain an additional Cd2+ position. The crystal structure is discussed with respect to related compounds of the Johillerite type.
Quaternary Selenidogermanates(IV) A3[AgGe4Se10]·2H2O and A2[MnGe4Se10]·3H2O (A = Rb, Cs) with Open Framework Structures
Authors: Loose Anja , Sheldrick William S. 
Published: August 2018

Abstract
Hydrothermal reaction of Ge and Se with Ag(CH3COO) in the presence of alkali metal carbonates affords the open framework selenidogermanates(IV) A3[AgGe4Se10]·2H2O (A = Rb, Cs), 1 and 2, which contain corner linked adamantane-like Ge4Se10 cages and AgSe4 tetrahedra. The analogous reaction with Mn(CH3COO)2 yields the isostructural tetragonal compounds A2[MnGe4Se10]·3H2O (A = Rb, Cs), 3 and 4. The cations are sited at a general position in the channels of the silver bridged anionic framework of 1 and 2 and exhibit a disordered pattern of occupation (s.o.f. = 0.75) with one of the two crystallographically independent water oxygen atoms O(2) (s.o.f. = 0.25). In contrast, the Rb+ cations in 3 are disordered over all three cation/oxygen sites, and the cation/water occupation pattern is fully reversed for the larger Cs+ cations in 4 in comparison to 1 and 2.
Zur Reaktion von N-Sulfonyliminodithiocarbonaten mit den Dibromiden des Cyclooctatetraens Reaction of Sulfonylcarboniminodithioates with the Dibromides of Cyclooctatetraene
Authors: Hartke Klaus , Bickert Jens Malte , Warda Salam A. 
Published: August 2018

Abstract
Dipotassium aryl(alkyl)sulfonylcarboniminodithioates (1a-c) crystallize with one or two molecules of water. In aqueous solution, they are protonated to form sulfonylcarbamodithioates (1”a-c). Aryl(alkyl)sulfonylcarboniminodithioates (1a-c) react with cyclooctate­traene dibromides (2a,b) to yield a mixture of 10-aryl(alkyl)sulfonylimino-9,11-dithiabicyclo-[6.3.0]undeca-2,4,6-trienes (3a-c) and 11-aryl(alkyl)sulfonyl-9,11-thiazabicyclo[6.3.0]-undeca-2.4.6-triene-10-thiones (4a-c). Structure (4a) was confirmed by X-ray analysis.