Abstract
C8H4O3F13SK, monoclinic, P21/c (no. 14), a = 27.550(3) Å, b = 16.0932(16) Å, c = 9.9834(10) Å, β = 96.686(4)°, V = 4396.3(8) Å3, Z = 4, T = 100 K, Rgt(F) = 0.0559, wRref(F2) = 0.1609.
The molecular structure is shown in the figure. Table 1 contains the crystallographic data and the list of the atoms including atomic coordinates and displacement parameters can be found in the cif-file attached to this article.

Data collection and handling.
| Crystal: | Colorless plate |
| Size: | 0.15 × 0.10 × 0.02 mm |
| Wavelength: | Ga Kα radiation (1.34139 Å) |
| μ: | 4.04 mm−1 |
| Diffractometer, scan mode: | Bruker D8 venture, φ and ω scans |
| θmax, completeness: | 59.1°, 100 % |
| N(hkl)measured, N(hkl)unique, Rint: | 49875, 9446, 0.063 |
| Criterion for Iobs, N(hkl)gt: | Iobs > 2 σ(Iobs), 7480 |
| N(param)refined: | 812 |
| Programs: | Bruker, 1 SHELX, 2 , 3 , 4 Olex2, 5 Diamond 6 |
1 Source of materials
All the reagents and solvents were used as obtained without further purification. Potassium 1H,1H,2H,2H-perfluorooctanesulfonate (PFOEKS) was obtained from Aldrich Chemical Reagent Company. A small amount of potassium perfluorohexylethanesulfonate (0.5 g) was dissolved in 10 mL of 95 % methanol and slowly evaporated at room temperature (20 °C). After one week, colorless plate crystals were obtained at the bottom of the vessel. Suitable crystals were selected for the X-ray diffraction experiments. Aiming for a better X-ray data collection, crystals were selected and immersed into perfluoroalkylether, which were then cooled down to −173 °C during the measurement.
2 Experimental details
H atoms were placed at their geometrically idealized positions and constrained to ride on their parent atoms with 0.99 Å and Uiso(H) = 1.2Ueq. Some atoms (C12–C16 and F16–F25) are apparently disordered over two positions. The refinement of their positions, bond distances and thermal factors are refined by using commands PART, SAME and EADP. The final outcome of the occupancies for the major and minor components are 0.63(1):0.37(1), respectively.
3 Comment
Low-dose concentrations of metal Cr(III) ions in drinking water may be oxidized into harmful Cr(VI) ions under the action of a small amount of disinfectants or oxidants. 7 Therefore, removal of these potentially harmful high-valent metal ions is of crucial importance. From a chemical perspective, there are many chelating agents which can remove these metal ions, such as polycarboxylic acids and pyridine-based organic ligands. 8 However, most of the metal complexes formed by these ligands tend to precipitate and are not easily transferred to the organic solvent phase for subsequent separation operations. 9 Organic ligands containing fluorine, such as potassium perfluoroalkyl sulfonates, which have both surfactant and metal-ion-chelating functions, are gradually being applied in water purification treatment. 10 These compounds having high surface activity, can significantly reduce the surface tension of water, and have good water solubility and lipophilicity, which can efficiently transfer harmful metal ions in water that are harmful to the human body to the organic solvent phase, achieving the purpose of water purification and facilitating the subsequent separation and treatment of harmful metals. 11 Due to the presence of multiple fluorine atoms in the molecule, these compounds can also have good chemical stability, thermal stability, and weather resistance. Potassium 1H,1H,2H,2H-perfluorooctanesulfonate (PFOEKS) is a new type of chemical reagent for removing Cr(VI) from water, but the crystal structure of this compound has not been reported yet.
It was found that the compound crystallized in the monoclinic crystal system with the space group P21/c. Its asymmetric unit contained three deprotonated perfluorohexylethanesulfonate anions and three potassium ions. The K1 ion formed a distorted octahedral coordination with six O atoms from six different PFOEKS anions. The K2 ion coordinated with nine O atoms from five different PFOEKS anions, among which both two oxygen atoms of two sulfonate ions chelated to one K2 ion. The K3 ion coordinated with seven O atoms from five different PFOEKS anions and one F27 atom, forming a polyhedral coordination. The K–O coordination bond lengths around the three metal ions ranged from 2.672(2) to 3.036(2) Å, and the only K–F coordination bond length was 2.668(2) Å, which are similar to the coordination bond lengths in the some analogs. 12 , 13 , 14 The distances between K1⋯K2, K2⋯K3 and K1⋯K3 are 2.918(2) Å, 3.901(2) Å and 3.660(2) Å, respectively. All the potassium ions are connected by some μ2- and μ3-O bridges, forming a two-dimensional layered structure parallel to the [100] plane. 15 The two sides of the layer are densely covered with alkyl chains containing a large number of fluorine atoms, while in the center of the layer are sulfonate ions and potassium ions that are more hydrophilic. Such a structure further highlights the hydrophilic and lipophilic properties of the compound.
Acknowledgments
Scientific Research Projects for Higher Education Institutions of Guizhou Provincial Department of Education (Youth Projects), The pollution and the influence of aging process of Microplastic in bottled mineral water, No. [2022] 298.
References
1. Bruker. Smart and Saint; Bruker AXS Inc.: Madison, WI, USA, 2003.Suche in Google Scholar
2. Sheldrick, G. M. Shelxtl Integrated Space-Group and Crystal-Structure Determination. Acta Crystallogr. A 2015, 71, 3–8; https://doi.org/10.1107/s2053273314026370.Suche in Google Scholar PubMed PubMed Central
3. Sheldrick, G. M. Crystal Refinement with Shelx. Acta Crystallogr. C 2015, 71, 3–8; https://doi.org/10.1107/s2053229614024218.Suche in Google Scholar
4. Sheldrick, G. M. A Short History of SHELX. Acta Crystallogr. A 2008, 64, 112–122; https://doi.org/10.1107/s0108767307043930.Suche in Google Scholar PubMed
5. Dolomanov, O. V.; Bourhis, L. J.; Gildea, R. J.; Howard, J. A. K.; Puschmann, H. Olex2: A Complete Structure Solution, Refinement and Analysis Program. J. Appl. Cryst. 2009, 42, 339–341; https://doi.org/10.1107/s0021889808042726.Suche in Google Scholar
6. Brandenburg, K. Diamond; Crystal Impact GbR: Bonn Germany, 2006.Suche in Google Scholar
7. Liang, J.; Huang, X.; Yan, J.; Li, Y.; Zhao, Z.; Liu, Y.; Ye, J.; Wei, Y. A Review of the Formation of Cr(VI) Via Cr(III) Oxidation in Soils and Ground Water. Sci. Total Environ. 2021, 774, 145762. https://doi.org/10.1016/j.scitotenv.2021.145762.Suche in Google Scholar
8. Repo, E.; Warchol, J. K.; Bhatnagar, A.; Mudhoo, A.; Sillanpää, M. Aminopolycarboxylic Acid Functionalized Adsorbents for Heavy Metals Removal from Water. Water Res. 2013, 47, 4812–4832. https://doi.org/10.1016/j.watres.2013.06.020.Suche in Google Scholar PubMed
9. Qasem, N. A. A.; Mohammed, R. H.; Lawal, D. U. Removal of Heavy Metal Ions from Wastewater: A Comprehensive and Critical Review. NPJ Clean Water 2021, 4, 36. https://doi.org/10.1038/s41545-021-00127-0.Suche in Google Scholar
10. Garnovskii, A. D.; Kharisov, B.; Blanco, L.; Sadimenko, A.; Uraev, A.; Vasilchenko, I.; Garnovskii, D. Review: Metal Complexes as Ligands. J. Coord. Chem. 2010, 55, 1119–1134. https://doi.org/10.1038/s41545-021-00127-0.Suche in Google Scholar
11. Bzdek, B. R.; Reid, J. P.; Malila, J.; Prisle, N. L. The Surface Tension of Surfactant-Containing, Finite Volume Droplets. Proc. Natl. Acad. Sci. U. S. A. 2020, 117, 8335–8343; https://doi.org/10.1073/pnas.1915660117.Suche in Google Scholar PubMed PubMed Central
12. Chen, H. L.; Miao, J. H.; Lin, F. Q.; Pan, W. G.; Lin, C. W. Crystal Structure of Di(potassium 2-(2-ethoxy-2-oxoethoxy)-5-(7-(2-ethoxy- 2-oxoethoxy)-4-oxo-4H-chromen-3-yl)benzenesulfonate), C23H21KO11S. Z. Kristallogr. N. Cryst. Struct. 2014, 229, 476–478. https://doi.org/10.1107/S1600536808008519.Suche in Google Scholar PubMed PubMed Central
13. Becker, M.; Schulz, A.; Villinger, A.; Voss, K. Stable Sulfate and Nitrate Borane-Adduct Anions. RSC Adv. 2011, 1, 128–134. https://doi.org/10.1039/c1ra00186h.Suche in Google Scholar
14. Chen, Z.; Lu, Y.-L.; Wang, L.; Xu, J.; Zhang, J.; Xu, X.; Cheng, P.; Yang, S.; Shi, W. Efficient Recognition and Removal of Persistent Organic Pollutants by a Bifunctional Molecular Material. J. Am. Chem. Soc. 2022, 145, 260; https://doi.org/10.1021/jacs.2c09866.Suche in Google Scholar PubMed
15. Spek, A. L. Structure Validation in Chemical Crystallography. Acta Crystallogr. D 2009, 65, 148–155. https://doi.org/10.1107/S090744490804362X.Suche in Google Scholar PubMed PubMed Central
© 2025 the author(s), published by De Gruyter, Berlin/Boston
This work is licensed under the Creative Commons Attribution 4.0 International License.
Artikel in diesem Heft
- Frontmatter
- New Crystal Structures
- The crystal structure of (1Z, 2Z)-3-phenyl-2-propenal 2-(4-bromo-2-fluorophenyl)hydrazone, C15H12BrFN2
- Refinement of crystal structure of 2-(2,3-dihydro-3-oxo-1 H -inden-1-ylidene)-1 H -indene-1,3(2 H )-dione C18H10O3
- The crystal structure of 3-(1-fluoro-2-(naphthalen-2-yl)-2-oxoethyl)-2-methoxy-3,4-dihydroisoquinolin-1(2H)-one, C22H18FNO3
- Crystal structure of the dinuclear copper(II) complex bis(μ2-2,2′ -{[1,3-phenylenebis-(methylene)]bis(oxy)}dibenzoaot-κ4O,O′:O′′,O′′′)-bis(dimethylformamide-κ1O)dicopper(II), C50H44Cu2N2O14
- Crystal structure of poly[triaqua-(μ9-biphenyl-3,3′,5,5′-tetracarboxylic-κ8 O,O:O,O′: O,O″:O,O‴)samarium(III)sodium(I)], C16H12NaSmO11
- The crystal structure of 5-benzyl-1-(4-fluorobenzyl)-4-((4-fluorobenzyl)oxy)-1,5-dihydro-2H-pyrrol-2-one, C25H21F2NO2
- The crystal structure of diammonium 2,5-dihydroxyterephthalate, C8H12N2O6
- Crystal structure of (E)-4-(4-(1H-1,2,4-triazol-1-yl)benzylidene)-6,8-dimethoxy-3,4-dihydrobenzo[b]oxepin-5(2H)-one, C21H19N3O4
- Crystal structure of poly[oktakis(μ2-oxido-κ2O:O)-tetrakis(oxido-κ1O)-bis(μ2-1,1′-[1,4-phenylenebis(methylene)]di(1H-imidazole-κ2N:N′))-tetravanadium(V)-dizinc(II)] monohydrate, C28H30Zn2N8O13V4
- Crystal structure of acotiamide hydrochloride dimethylacetamide solvate (1/1), C25H40ClN5O6S
- Crystal structure of catena-poly[monoaqua (u2-(3-(3,5-dicarboxyphenyl)pyridine-2,6-dicarboxylic-k4O:O′:O″:N)zinc(II))] monohydrate, C15H11NO10Zn
- Crystal structure of dichlorido{2,6-bis(3,5-diisopropyl-N-pyrazolyl)pyridine}zinc(II), C23H33Cl2N5Zn
- Crystal structure of nitrato-κ2O,O′-[hydridotris(3,5-diethylpyrazol-1-yl)borato-κ3N,N′,N″]copper(II), C21H34BCuN7O3
- Crystal structure of 2,7-bis(3,5-diethyl-1H-pyrazol-4-yl)-benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetrone, C28H26N6O4
- Crystal structure of 2-(4-chlorophenyl)benzothiazole, C13H8ClNS
- Synthesis and crystal structure (3R,4′S)-4′-(3,5-dibromophenyl)-1′-methyl-2H-dispiro [benzofuran-3,3′-pyrrolidine-2′,2″-indene]-1″,2,3″-trione, C26H17Br2NO4
- Crystal structure of bis(((3a,7a-dihydro-1H-benzo[d][1,2,3]triazol-1-yl)methyl) triphenylphosphonium) tetrachloridomanganate(II), C50H42Cl4MnN6P2
- The crystal structure of 4,9-bis(4-chlorophenyl)-1,6-bis(2-cyanobenzyl)-2,4a,5,6,7,7a-hexahydro-1H-2,7,5-(epiprop[2]ene[1,1,3]triyl)pyrrolo[3,4-b]pyridine-3,10-dicarbonitrile, C40H26Cl2N6
- The crystal structure of poly((μ2-3-(3-nitro-4-carboxylphenyl)benzoate-κ3O, O′:O″)-μ2-1,4-bis(1-imidazolyl)benzene-κ2N:N′-cadmium(II)), C26H17N5O6Cd
- The crystal structure of 6-hydroxy-5H-pyrrolo[3,4-b]pyridine-5,7(6H)-dione monohydrate, C7H6N2O4
- Crystal structure of 4-((cyclohexylsulfonyl)methyl)-1,2,3,4-tetrahydrobenzo [4,5]imidazo[1,2-a]pyridine, C18H24N2O2S
- Crystal structure of 4,7-diphenyl-1,10-phenanthroline-κ2N,N′)-bis(2,4-di(fluorine)-1-phenylpyridine-κ2C,N)-iridium(III) hexafluorophosphate–dichloromethane (1/1), C47H30Cl2F10IrN4P
- Crystal structure of (4-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)boronic acid, C19H15BN2O2
- The crystal structure of (E)-(2-((pyridin-2-ylmethylene)amino)phenyl)arsonic acid, C12H11AsN2O3
- The crystal structure of N(benzyl(phenyl)carbomothioyl)benzamide, C21H18N2OS
- The crystal structure of bis(2-picolinium) hexachlorostannate dichloromethane monosolvate, C13H18Cl8N2Sn
- Crystal structure of poly[tetraaqua-bis(μ4-3–1-(carboxylatomethyl)-1H-1,2,4-triazole-3-carboxylato)-κ4O:O′,O″,N)zinc(II)], C5H7N3O6Zn
- The crystal structure of the co-crystal isonicotinamide – 2-(nitrophenyl)methanol (1/1), C6H6N2O·C7H7NO3
- The crystal structure of 4-(3-carboxy-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium 2-fluorobenzoate hydrate, C23H25F2N3O6
- Crystal structure of [diaqua-{1H-benzo[d]imidazol-3-ium-5,6-dicarboxylato-κ2O,O′}magnesium(II)] C18H14MgN4O10
- Crystal structure of (3-(dimethoxymethyl)-5-methoxy-1H-indol-1-yl) (2-iodo-5-methoxyphenyl)methanone, C20H20INO5
- The crystal structure of 3,7,11-trimethylbenzo[5,6][1,4]thiazino[2,3,4-kl]phenothiazine 5,5,9,9-tetraoxide, C21H17NO4S2
- Crystal structure of tris(piperazine-1,4-diium)bis(2-hydroxy-1,2,3-propane-tricarboxylate) pentahydrate, C24H56N6O19
- Crystal structure of 2-chloro-5-((5-isopropyl-2-methylphenoxy)methyl)pyridine, C16H18ClNO
- Crystal structure of (E)-4-(4-(1H-pyrrol-1-yl)benzylidene)-6,8-dimethoxy-3,4-dihydrobenzo[(b)]oxepin-5(2H)-one, C23H21NO4
- Crystal structure of (E)-N′-(3,4-dichlorobenzylidene)-3,4,5-trimethoxybenzohydrazide, C17H16Cl2N2O4
- The crystal structure of 2-(2-hydroxyphenyl)-3-(pyridin-2-yl)-2,3- dihydroquinazolin-4(1H)-one, C19H15N3O2
- Crystal structure of 5-hydroxy-2-(4-hydroxyphenyl)-7-methoxy-8-methylchroman-4-one, C17H16O5
- Crystal structure of bis[(3,4-dimethoxybenzyl)triphenylphosphonium]di-μ2-bromido-dibromidodicopper(I)
- Crystal structure of bis [(1,3-dioxolan-2-ylmethyl)triphenylphosphonium] tetrabromidodicopper(I), C22H22Br2CuO2P
- Crystal structure of [1-(4-carboxyphenyl)-4-oxo-1,4-dihydropyridazine-3-carboxylic acid], C12H8N2O5
- The crystal structure of one-dimensional cooridnation polymer bis(thiocyanato)-bis((1E,2E)-1,2-bis(1-(pyridin-3-yl)ethylidene)-hydrazine κ2N:N)iron(II), (C30H28N10S2Fe)n
- Crystal structure of ((4-acetamidophenyl)sulfonyl)-l-alanine, C11H14N2O5S
- Crystal structure of [(1-naphthalen-1-yl-methyl)triphenylphosphonium] dichloridocopper(I), [C29H24P]+[CuCl2]−
- RbTm3S5: the first rubidium lanthanoid(III) sulfide with CsEr3Se5-type crystal structure
- Crystal structure of 2,2′-((ethane-1,2-diylbis(methylammoniumdiyl))bis(methylene))bis(pyridin-1-ium) diiodido-tris(μ2-iodido-κ2I:I)dicopper(II) chloride dihydrate, C16H30Cu2I6N4O2
- The crystal structure of 4-(trifluoromethyl)pyridine-2-carboxylic acid, C7H4F3NO2
- The crystal structure of (E)-2-ethoxy-1-methoxy-4-(2-(methylsulfonyl)vinyl)benzene, C12H16O4S
- Crystal structure of potassium 1H,1H,2H,2H-perfluorooctanesulfonate, C8H4O3F13SK
- Crystal structure of 4-(4-(quinolin-8-yloxy)-1,2,5-thiadiazol-3-yl)morpholine, C15H14O2N4S
- The crystal structure of 1,4-bis(bromomethyl)-2,5-dimethylbenzene, C10H12Br2
- The crystal structure of imidazo[4,5-e][1,3]diazepine-4,6,8-triamine methanol solvate, C7H11N7O
- The crystal structure of chlorido-bis(1,10-phenantroline-κ2N,N′)-(2-formylphenoxyacetato-κ2O,O) lead(II), C33H23N4O4ClPb
- Crystal structure of pyridinium tetrakis(1,1,1-trifluoro-2,4-pentadionato-κ2O,O′)yttrium(III) C20F12H16YO8C5H6N
Artikel in diesem Heft
- Frontmatter
- New Crystal Structures
- The crystal structure of (1Z, 2Z)-3-phenyl-2-propenal 2-(4-bromo-2-fluorophenyl)hydrazone, C15H12BrFN2
- Refinement of crystal structure of 2-(2,3-dihydro-3-oxo-1 H -inden-1-ylidene)-1 H -indene-1,3(2 H )-dione C18H10O3
- The crystal structure of 3-(1-fluoro-2-(naphthalen-2-yl)-2-oxoethyl)-2-methoxy-3,4-dihydroisoquinolin-1(2H)-one, C22H18FNO3
- Crystal structure of the dinuclear copper(II) complex bis(μ2-2,2′ -{[1,3-phenylenebis-(methylene)]bis(oxy)}dibenzoaot-κ4O,O′:O′′,O′′′)-bis(dimethylformamide-κ1O)dicopper(II), C50H44Cu2N2O14
- Crystal structure of poly[triaqua-(μ9-biphenyl-3,3′,5,5′-tetracarboxylic-κ8 O,O:O,O′: O,O″:O,O‴)samarium(III)sodium(I)], C16H12NaSmO11
- The crystal structure of 5-benzyl-1-(4-fluorobenzyl)-4-((4-fluorobenzyl)oxy)-1,5-dihydro-2H-pyrrol-2-one, C25H21F2NO2
- The crystal structure of diammonium 2,5-dihydroxyterephthalate, C8H12N2O6
- Crystal structure of (E)-4-(4-(1H-1,2,4-triazol-1-yl)benzylidene)-6,8-dimethoxy-3,4-dihydrobenzo[b]oxepin-5(2H)-one, C21H19N3O4
- Crystal structure of poly[oktakis(μ2-oxido-κ2O:O)-tetrakis(oxido-κ1O)-bis(μ2-1,1′-[1,4-phenylenebis(methylene)]di(1H-imidazole-κ2N:N′))-tetravanadium(V)-dizinc(II)] monohydrate, C28H30Zn2N8O13V4
- Crystal structure of acotiamide hydrochloride dimethylacetamide solvate (1/1), C25H40ClN5O6S
- Crystal structure of catena-poly[monoaqua (u2-(3-(3,5-dicarboxyphenyl)pyridine-2,6-dicarboxylic-k4O:O′:O″:N)zinc(II))] monohydrate, C15H11NO10Zn
- Crystal structure of dichlorido{2,6-bis(3,5-diisopropyl-N-pyrazolyl)pyridine}zinc(II), C23H33Cl2N5Zn
- Crystal structure of nitrato-κ2O,O′-[hydridotris(3,5-diethylpyrazol-1-yl)borato-κ3N,N′,N″]copper(II), C21H34BCuN7O3
- Crystal structure of 2,7-bis(3,5-diethyl-1H-pyrazol-4-yl)-benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetrone, C28H26N6O4
- Crystal structure of 2-(4-chlorophenyl)benzothiazole, C13H8ClNS
- Synthesis and crystal structure (3R,4′S)-4′-(3,5-dibromophenyl)-1′-methyl-2H-dispiro [benzofuran-3,3′-pyrrolidine-2′,2″-indene]-1″,2,3″-trione, C26H17Br2NO4
- Crystal structure of bis(((3a,7a-dihydro-1H-benzo[d][1,2,3]triazol-1-yl)methyl) triphenylphosphonium) tetrachloridomanganate(II), C50H42Cl4MnN6P2
- The crystal structure of 4,9-bis(4-chlorophenyl)-1,6-bis(2-cyanobenzyl)-2,4a,5,6,7,7a-hexahydro-1H-2,7,5-(epiprop[2]ene[1,1,3]triyl)pyrrolo[3,4-b]pyridine-3,10-dicarbonitrile, C40H26Cl2N6
- The crystal structure of poly((μ2-3-(3-nitro-4-carboxylphenyl)benzoate-κ3O, O′:O″)-μ2-1,4-bis(1-imidazolyl)benzene-κ2N:N′-cadmium(II)), C26H17N5O6Cd
- The crystal structure of 6-hydroxy-5H-pyrrolo[3,4-b]pyridine-5,7(6H)-dione monohydrate, C7H6N2O4
- Crystal structure of 4-((cyclohexylsulfonyl)methyl)-1,2,3,4-tetrahydrobenzo [4,5]imidazo[1,2-a]pyridine, C18H24N2O2S
- Crystal structure of 4,7-diphenyl-1,10-phenanthroline-κ2N,N′)-bis(2,4-di(fluorine)-1-phenylpyridine-κ2C,N)-iridium(III) hexafluorophosphate–dichloromethane (1/1), C47H30Cl2F10IrN4P
- Crystal structure of (4-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)boronic acid, C19H15BN2O2
- The crystal structure of (E)-(2-((pyridin-2-ylmethylene)amino)phenyl)arsonic acid, C12H11AsN2O3
- The crystal structure of N(benzyl(phenyl)carbomothioyl)benzamide, C21H18N2OS
- The crystal structure of bis(2-picolinium) hexachlorostannate dichloromethane monosolvate, C13H18Cl8N2Sn
- Crystal structure of poly[tetraaqua-bis(μ4-3–1-(carboxylatomethyl)-1H-1,2,4-triazole-3-carboxylato)-κ4O:O′,O″,N)zinc(II)], C5H7N3O6Zn
- The crystal structure of the co-crystal isonicotinamide – 2-(nitrophenyl)methanol (1/1), C6H6N2O·C7H7NO3
- The crystal structure of 4-(3-carboxy-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium 2-fluorobenzoate hydrate, C23H25F2N3O6
- Crystal structure of [diaqua-{1H-benzo[d]imidazol-3-ium-5,6-dicarboxylato-κ2O,O′}magnesium(II)] C18H14MgN4O10
- Crystal structure of (3-(dimethoxymethyl)-5-methoxy-1H-indol-1-yl) (2-iodo-5-methoxyphenyl)methanone, C20H20INO5
- The crystal structure of 3,7,11-trimethylbenzo[5,6][1,4]thiazino[2,3,4-kl]phenothiazine 5,5,9,9-tetraoxide, C21H17NO4S2
- Crystal structure of tris(piperazine-1,4-diium)bis(2-hydroxy-1,2,3-propane-tricarboxylate) pentahydrate, C24H56N6O19
- Crystal structure of 2-chloro-5-((5-isopropyl-2-methylphenoxy)methyl)pyridine, C16H18ClNO
- Crystal structure of (E)-4-(4-(1H-pyrrol-1-yl)benzylidene)-6,8-dimethoxy-3,4-dihydrobenzo[(b)]oxepin-5(2H)-one, C23H21NO4
- Crystal structure of (E)-N′-(3,4-dichlorobenzylidene)-3,4,5-trimethoxybenzohydrazide, C17H16Cl2N2O4
- The crystal structure of 2-(2-hydroxyphenyl)-3-(pyridin-2-yl)-2,3- dihydroquinazolin-4(1H)-one, C19H15N3O2
- Crystal structure of 5-hydroxy-2-(4-hydroxyphenyl)-7-methoxy-8-methylchroman-4-one, C17H16O5
- Crystal structure of bis[(3,4-dimethoxybenzyl)triphenylphosphonium]di-μ2-bromido-dibromidodicopper(I)
- Crystal structure of bis [(1,3-dioxolan-2-ylmethyl)triphenylphosphonium] tetrabromidodicopper(I), C22H22Br2CuO2P
- Crystal structure of [1-(4-carboxyphenyl)-4-oxo-1,4-dihydropyridazine-3-carboxylic acid], C12H8N2O5
- The crystal structure of one-dimensional cooridnation polymer bis(thiocyanato)-bis((1E,2E)-1,2-bis(1-(pyridin-3-yl)ethylidene)-hydrazine κ2N:N)iron(II), (C30H28N10S2Fe)n
- Crystal structure of ((4-acetamidophenyl)sulfonyl)-l-alanine, C11H14N2O5S
- Crystal structure of [(1-naphthalen-1-yl-methyl)triphenylphosphonium] dichloridocopper(I), [C29H24P]+[CuCl2]−
- RbTm3S5: the first rubidium lanthanoid(III) sulfide with CsEr3Se5-type crystal structure
- Crystal structure of 2,2′-((ethane-1,2-diylbis(methylammoniumdiyl))bis(methylene))bis(pyridin-1-ium) diiodido-tris(μ2-iodido-κ2I:I)dicopper(II) chloride dihydrate, C16H30Cu2I6N4O2
- The crystal structure of 4-(trifluoromethyl)pyridine-2-carboxylic acid, C7H4F3NO2
- The crystal structure of (E)-2-ethoxy-1-methoxy-4-(2-(methylsulfonyl)vinyl)benzene, C12H16O4S
- Crystal structure of potassium 1H,1H,2H,2H-perfluorooctanesulfonate, C8H4O3F13SK
- Crystal structure of 4-(4-(quinolin-8-yloxy)-1,2,5-thiadiazol-3-yl)morpholine, C15H14O2N4S
- The crystal structure of 1,4-bis(bromomethyl)-2,5-dimethylbenzene, C10H12Br2
- The crystal structure of imidazo[4,5-e][1,3]diazepine-4,6,8-triamine methanol solvate, C7H11N7O
- The crystal structure of chlorido-bis(1,10-phenantroline-κ2N,N′)-(2-formylphenoxyacetato-κ2O,O) lead(II), C33H23N4O4ClPb
- Crystal structure of pyridinium tetrakis(1,1,1-trifluoro-2,4-pentadionato-κ2O,O′)yttrium(III) C20F12H16YO8C5H6N