Home Crystal structure of catena-poly[{μ2-3-carboxy-2,3-bis((4-methylbenzoyl)oxy)propanoato-κ2 O:O′}tris(methanol-κ1 O)lanthanum(III)], C63H63LaO27
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Crystal structure of catena-poly[{μ2-3-carboxy-2,3-bis((4-methylbenzoyl)oxy)propanoato-κ2 O:O′}tris(methanol-κ1 O)lanthanum(III)], C63H63LaO27

  • Yingying Han , Sisi Feng ORCID logo EMAIL logo and Liping Lu
Published/Copyright: February 23, 2022
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 237 Issue 2

Abstract

C63H63LaO27, trigonal, R3 (no. 146), a = 27.5427(11) Å, c = 7.7330(4) Å, V = 5080.3(5) Å3, Z = 3, R gt (F) = 0.037, wR ref (F 2) = 0.096, T = 100 K.

CCDC no.: 2141982

A part of the title crystal structure is shown in the figure. Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal: Colorless block
Size: 0.30 × 0.20 × 0.20 mm
Wavelength: Synchrotron radiation (0.710 Å)
μ: 0.70 mm−1
Diffractometer, scan mode: mar555
θ max, completeness: 30.5°, 99%
N(hkl)measured, N(hkl)unique, R int: 9418, 9418, 0.000
Criterion for I obs, N(hkl)gt: I obs > 2 σ(I obs), 9415
N(param)refined: 279
Programs: Data processing [1], Bruker [2], SHELX [3, 4]
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

Atom x y z U iso*/U eq
La1 0.666667 0.333333 −0.08427 (2) 0.01006 (8)
O1 0.71133 (13) 0.40985 (13) 0.1242 (5) 0.0173 (6)
O2 0.75601 (13) 0.50115 (13) 0.0516 (4) 0.0180 (6)
O3 0.71745 (13) 0.40974 (13) −0.3031 (5) 0.0174 (6)
O4 0.73019 (14) 0.49588 (13) 0.7414 (4) 0.0177 (6)
H4 0.739982 0.491713 0.840649 0.026*
O5 0.79391 (12) 0.53204 (12) 0.3805 (4) 0.0149 (5)
O6 0.86356 (14) 0.52462 (15) 0.2513 (5) 0.0243 (7)
O7 0.68455 (12) 0.49212 (12) 0.4194 (4) 0.0153 (5)
O8 0.60451 (15) 0.43367 (17) 0.5607 (6) 0.0281 (8)
O9 0.77891 (12) 0.37914 (14) −0.0984 (5) 0.0186 (6)
H9A 0.794461 0.396249 −0.193391 0.028*
C1 0.74035 (16) 0.46078 (16) 0.1547 (6) 0.0138 (7)
C2 0.75774 (16) 0.47381 (16) 0.3473 (6) 0.0130 (6)
H2 0.776879 0.452735 0.383763 0.016*
C3 0.70500 (16) 0.45470 (16) 0.4578 (6) 0.0136 (6)
H3 0.676166 0.416091 0.420511 0.016*
C4 0.71816 (16) 0.45269 (15) 0.6492 (5) 0.0129 (7)
C5 0.84698 (17) 0.55309 (17) 0.3202 (6) 0.0163 (7)
C6 0.88150 (17) 0.61460 (17) 0.3537 (6) 0.0171 (7)
C7 0.93618 (19) 0.64297 (19) 0.2884 (7) 0.0230 (9)
H7 0.949318 0.623926 0.216837 0.028*
C8 0.9712 (2) 0.69925 (19) 0.3290 (7) 0.0250 (9)
H8 1.008506 0.718208 0.285846 0.030*
C9 0.9526 (2) 0.72843 (18) 0.4319 (7) 0.0237 (9)
C10 0.8978 (2) 0.6992 (2) 0.4966 (8) 0.0289 (11)
H10 0.884736 0.718272 0.568217 0.035*
C11 0.8620 (2) 0.6427 (2) 0.4581 (8) 0.0238 (10)
H11 0.824885 0.623568 0.502381 0.029*
C12 0.9909 (2) 0.7903 (2) 0.4693 (9) 0.0344 (12)
H12A 0.978898 0.812356 0.400511 0.052*
H12B 1.029500 0.801064 0.438960 0.052*
H12C 0.988853 0.797431 0.592500 0.052*
C13 0.63190 (18) 0.4757 (2) 0.4750 (6) 0.0196 (8)
C14 0.6127 (2) 0.5142 (2) 0.4117 (7) 0.0257 (9)
C15 0.6493 (2) 0.5645 (2) 0.3285 (8) 0.0300 (11)
H15 0.687625 0.575245 0.314185 0.036*
C16 0.6295 (3) 0.5990 (3) 0.2666 (10) 0.0393 (14)
H16 0.654810 0.633295 0.211321 0.047*
C17 0.5736 (3) 0.5841 (3) 0.2844 (10) 0.0436 (16)
C18 0.5380 (3) 0.5346 (4) 0.3688 (13) 0.054 (2)
H18 0.499884 0.524632 0.385021 0.064*
C19 0.5562 (3) 0.4989 (3) 0.4307 (10) 0.0449 (17)
H19 0.530552 0.464553 0.485253 0.054*
C20 0.5524 (4) 0.6213 (4) 0.2119 (14) 0.064 (3)
H20A 0.583977 0.659361 0.195870 0.095*
H20B 0.525386 0.622131 0.292657 0.095*
H20C 0.534045 0.606340 0.100358 0.095*
C21 0.8222 (2) 0.3919 (2) 0.0253 (8) 0.0293 (11)
H21A 0.833783 0.428471 0.078056 0.044*
H21B 0.854460 0.393081 −0.032546 0.044*
H21C 0.808206 0.362994 0.115298 0.044*

Source of material

All reagents and solvents are analytically pure and used without further purification. The D-H2DTTA (Systematic name: 2,3-bis((4-methylbenzoyl)oxy)succinic acid; 69.5 mg, 0.18 mmol) was dissolved in 2.5 mL methanol, and added to a 25 mL round bottom flask. An aqueous solution (2.50 mL) of La(NO3)·6H2O (51.9 mg, 0.12 mmol) was added slowly to the solution. Then a KOH solution (0.2 mol/L) was carefully added to the mixture and adjust the pH value of the solution to about 6.5. After stirring for 7 h at room temperature, the filtrate was kept undisturbed for seven days. Colorless block crystals were obtained in a yield of 26%, based on D-H2DTTA.

Experimental details

Single crystal X-ray diffraction data of the complex were collected on beam line 3W1A of the Beijing Synchrotron Radiation Facility (BSRF), using A MARCCD-165 detector (λ = 0.71000 A) at a working voltage of 2.5 GeV, and the single crystals with regular shape, suitable size, and bright without cracks were selected under the polarization stereoscopic microscope. Data were collected by the MARCCD diffractometer and processed using HKL 2000 [1]. Multi-scan program SADABS was used for absorption correction [2]. The structures was solved by direct methods and refined by the full-matrix least squares on F 2 using the SHELXS-97 [3] and SHELXL-2014/7 [4]. Coordinates of hydrogen atoms were refined without any constraints or restraints. Their U iso values were set to 1.2U eq of the parent atoms.

Comment

In the past few decades, the design and application of lanthanide coordination polymers (Ln-CPs) have attracted extensive attention [5], not only the diversity of their structures, but also their wide applications in catalysis, magnetism and fluorescence detection [6]. More importantly, Ln(III) ions often endow the CPs with unique luminescent properties (characteristic sharp emission, high color purity, and long excited-state luminescence lifetimes) as a result of transitions within the partially-filled 4f shells of the trivalent Ln(III) ions [7]. Compared with other metal ions, Ln(III) ions have the characteristics of variable high coordination number, strong spin orbit coupling, and large magnetic moment, and have important functions such as magnetic, fluorescence sensing, nuclear magnetic resonance imaging [8], so Ln-CPs are the potential material for environmental or biomedical applications [9]. However, Ln-CPs are sensitive to temperature, pH, and pressure during synthetic process, which makes it difficult to grow crystals [10].

Rational selection of ligands is considered to be a very suitable method for the synthesis of structurally diverse Ln-CPs [11]. Tartaric acid, which is relatively inexpensive and readily available, plays an important role in many areas of chemistry [12]. D-H2DTTA ((+)-di-p-toluoyl-d-tartaric acid) is a flexible dicarboxylic acid with two equal chiral carbon atoms. Abundant carboxyl groups can provide variable coordination modes, which contribute to the construction of metal-organic complexes. In recent years, many Ln-CPs based on D-H2DTTA have been reported. Zhang Yuxiao et al. reported two novel isostructural Ln-CPs [Ln(DTTA)(DMF)3]NO3 (Ln = Eu, Tb) [13]. Our group synthesized a series of Ln-CPs, [Ln(HDTTA)3(CH3OH)3]n (Ln = Ce, Pr, Sm, Eu, Gd, Tb, Dy, Ho), and studied their optical and magnetic properties [14], [15], [16], [17].

X-ray single crystal diffraction results show that the title complex belongs to the trigonal crystal system with the space group R3. The asymmetric unit consists of one third of a La3+, a HDTTA− ion and a coordinated methanol molecule. La3+ is a nine-coordinated cation, and the coordinated atoms are respectively from six carboxyl oxygen atoms of HDTTA− and three oxygen atoms of methanol molecules, presenting the coordination pattern of three-capped triangular prism. The bond length of La–O ranges from 2.441(3) to 2.694(3) Å, and the bond angle of O–La–O ranges from 81.15(12) to 132.64(10)°. The complex forms an infinite one-dimensional chain structure along the c-axis by bridging La3+ with carboxyl groups at both ends of the ligand.

Corresponding author: Sisi Feng, Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People’s Republic of China, E-mail:

Funding source: Natural Science Foundation of China

Award Identifier / Grant number: 21671124

Funding source: Scientific Instrument Center of Shanxi University of China

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This work was supported by the Natural Science Foundation of China (Grant No 21671124) and the Scientific Instrument Center of Shanxi University of China.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2022-01-16
Accepted: 2022-02-07
Published Online: 2022-02-23
Published in Print: 2022-04-26

© 2022 Yingying Han et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 International License.

Articles in the same Issue

  1. Frontmatter
  2. New Crystal Structures
  3. Crystal structure of {2,2′-{cyclohexane-1,2-diylbis[(azanylylidene)methylylidene]}bis(2,4-dibromophenolato)-κ4 N,N′,O,O′}copper(II) ─ diethylformamide (1/1), C23H23Br4CuN3O3
  4. The crystal structure of 2-(2-methyl-6-phenyl-4H-pyran-4-ylidene)-1H-indene-1,3(2H)-dione, C21H14O3
  5. Crystal structure of bis((1-methylbenzimidazol-2-yl)methyl)amine, C18H19N5
  6. Crystal structure of (E)-N′-(1-(2-hydroxy-4-methoxyphenyl)ethylidene) isonicotinohydrazide, C15H15N3O3
  7. Crystal structure of 2-((4-phenyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetonitrile, C15H11N5S
  8. The crystal structure of 2,2′-((1E,1′E)-hydrazine-1,2-diylidenebis(methaneylylidene))bis(4-chlorophenol), C14H10Cl2N2O2
  9. Dichlorido-{2,6-bis(4,5-dihydro-1H-pyrazol-3-yl)pyridine-κ3 N,N′,N″}zinc(II), C11H9C12N5Zn
  10. The crystal structure of dichlorido-(2-((4-phenyl-2H-1,2,3-triazol-2-yl)methyl)pyridine-κ2N,N′)palladium(II), C14H12Cl2N4Pd
  11. The crystal structure of 1-(N1-benzyl-2-methyl-4-nitro-imidazol-5-yl)-4-(prop-2-yn-1-yl) piperazine, C18H21N5O2
  12. Crystal structure of (μ4-(1,2,4,5-tetra(1,2,4-triazol-1-ylmethyl)-benzene-κ4N:N1:N2:N3)disilver(I) diperchlorate
  13. The crystal structure of 1-(2-bromoethane)-4-amine-3,5-dinitropyrazole, C5H6Br1N5O4
  14. Crystal structure of (E)-1-(4-benzyl-3,5-dioxomorpholin-2-ylidene)ethyl acetate, C15H15N1O5
  15. The crystal structure of poly[diaqua-(μ2-1,2,4,5-tetrakis(1,2,4-triazol-1-ylmethyl)-benzene-κ2N:N′)-bis(μ3-terephthalato-κ3O:O′:O′′)dicadmium(II)], C17H15N6O5Cd
  16. Crystal structure of (E)-N′-(1-(5-chloro-2-hydroxyphenyl) ethylidene)thiophene-2-carbohydrazide, C13H11ClN2O2S
  17. The crystal structure of [(2,2′-bipyridine-k2 N,N)-bis(6-phenylpyridine-2-carboxylato-k2 N,O)cobalt(II)]-monohydrate, C36H26N4O5Co
  18. Crystal structure of (E)-N′-(2-chloro-6-hydroxybenzylidene)-3-hydroxybenzo-hydrazide monohydrate, C14H13ClN2O4
  19. Crystal structure of 1,1′-(methylene)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2S:S)nickel(II), C42H30N14Ni2S8
  20. Crystal structure of 1,1′-(1,2-ethanediyl)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S:S)nickel(II), C20H14N6NiS4
  21. The crystal structure of 1-methyl-1H-pyrazol-2-ium nitrate, C4H7O3N3
  22. The crystal structure of 4,4′-diselanediylbis(8-(hexyloxy)-3,6-dimethyl-1-(piperidin-1-yl)isoquinoline-7-carbonitrile), C46H60N6O2Se2
  23. The crystal structure of tris(6-methylpyridin-2-yl)phosphine selenide, C18H18N3PSe
  24. The crystal structure of 1,2-bis(2,4-dinitro-1H-imidazol-1-yl)ethane ─ acetone (1/1), C11H12N8O9
  25. Crystal structure of [diaqua[2,2′-(1,2-phenylene)bis(1H-imidazole-4-carboxylato-5-carboxy)-κ4N,N′,O,O′]nickel(II)] tetrahydrate, C16H12N4NiO10·4H2O
  26. The crystal structure of tris(4-methyl-1H-pyrazol-1-yl)methane, C13H16N6
  27. The crystal structure of 5,6-dichloro-2-(quinolin-8-yl)isoindoline-1,3-dione, C17H8Cl2N2O2
  28. Crystal structure of (E)-(2-methoxy-benzylidene)-(4-[1,2,4]triazol-1-yl-phenyl)-amine, C16H14N4O
  29. The crystal structure of (Z)-2-(4-(4-bromophenyl)thiazol-2-yl)-4-(3-hydroxybut-2-enoyl)-5-methyl -1,2-dihydro-3H-pyrazol-3-one – methanol (1/1), C18H18N3O4S
  30. Crystal structure of tetraaqua-tris(nitrato-κ2 O,O′) erbium(III) monohydrate, Er(NO3)3·5H2O, H10ErN3O14
  31. The crystal structure of 1-methyl-2-nitro-1H-imidazole 3-oxide, C4H5N3O3
  32. The crystal structure of 1-methyl-2-nitroimidazole, C4H5N3O2
  33. The crystal structure of 2-carboxyl-4-nitroimidazole monohydrate, C4H5N3O5
  34. Crystal structure of bis[hydrido-hexaphenylcarbodiphosphoran][tetra-trifluoromethyl-(μ-diiodo)-diplatinat]
  35. The crystal structure of poly[μ2-aqua- aqua-(μ3-(E)-2-(4-((2-carbamothioylhydrazineylidene)methyl)phenoxy)acetato-κ3 O:S:S)sodium(I)], C10H14N3O5SNa
  36. The twinned crystal structure of [4,4′-bipyridine]-1,1′-diium hexachloridostannate(IV), C10H10N2SnCl6
  37. The crystal structure of [(2,2′-bipyridine-k2 N,N)-bis(6-phenylpyridine-2-carboxylate-k2 N,O)copper(II)], C34H24N4O4Cu
  38. Crystal structure of trans-1,2-bis(pyridinium-4-yl) ethylene bis(2-carboxy-4-bromobenzoate) – water (1/4), C14H14BrNO6
  39. Crystal structure of poly[diaqua-(μ3-fumarato)-(μ3-maleato)-(μ4-1,2,4,5-tetrakis((1H-1,2,4-triazol-1-yl)methyl)benzene)tetracadmium(II)] dihydrate, C34H32N12O9Cd4
  40. Crystal structure of a second modification of Pachypodol, C18H16O7
  41. Crystal structure of methyl 2-(4-(2-(cyclopentyl-amino)-1-(N-(4-methoxyphenyl)-1-methyl-5-phenyl-1-H-pyrazole-3-carboxamido)-2-oxoethyl)phenyl)acetate, C34H36N4O5
  42. The crystal structure of catena-poly[(m2-4,4′-bipyridine-κ2 N:N)-bis(6-phenylpyridine-2-carboxylato-κ2 N,O) zinc(II)], C34H24N4O4Zn
  43. The crystal structure of hexaquamagnesium(II) (2,4-bis(nitroimino)-6-oxo-1,3,5-triazinane-1,3-diide), C3H15MgN7O12
  44. The crystal structure of 7-Bromo-2-(4-chloro-phenyl)-quinoxaline, C14H9BrClN2
  45. Crystal structure of methyl 4-{[4-(4-cyanobenzamido)phenyl]amino}benzofuro[2,3-d]pyrimidine-6-carboxylate, C26H17N5O4
  46. The crystal structure of (4SR)-7-(3,4-dichlorobenzyl)-4,8,8-trimethyl-7,8-dihydroimidazo[5,1c][1,2,4]triazine-3,6(2H,4H)-dione, C15H16Cl2N4O2
  47. Crystal structure of catena-poly[{μ2-3-carboxy-2,3-bis((4-methylbenzoyl)oxy)propanoato-κ2 O:O′}tris(methanol-κ1 O)lanthanum(III)], C63H63LaO27
https://doi.org/10.1515/ncrs-2022-0022
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Articles in the same Issue

  1. Frontmatter
  2. New Crystal Structures
  3. Crystal structure of {2,2′-{cyclohexane-1,2-diylbis[(azanylylidene)methylylidene]}bis(2,4-dibromophenolato)-κ4 N,N′,O,O′}copper(II) ─ diethylformamide (1/1), C23H23Br4CuN3O3
  4. The crystal structure of 2-(2-methyl-6-phenyl-4H-pyran-4-ylidene)-1H-indene-1,3(2H)-dione, C21H14O3
  5. Crystal structure of bis((1-methylbenzimidazol-2-yl)methyl)amine, C18H19N5
  6. Crystal structure of (E)-N′-(1-(2-hydroxy-4-methoxyphenyl)ethylidene) isonicotinohydrazide, C15H15N3O3
  7. Crystal structure of 2-((4-phenyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetonitrile, C15H11N5S
  8. The crystal structure of 2,2′-((1E,1′E)-hydrazine-1,2-diylidenebis(methaneylylidene))bis(4-chlorophenol), C14H10Cl2N2O2
  9. Dichlorido-{2,6-bis(4,5-dihydro-1H-pyrazol-3-yl)pyridine-κ3 N,N′,N″}zinc(II), C11H9C12N5Zn
  10. The crystal structure of dichlorido-(2-((4-phenyl-2H-1,2,3-triazol-2-yl)methyl)pyridine-κ2N,N′)palladium(II), C14H12Cl2N4Pd
  11. The crystal structure of 1-(N1-benzyl-2-methyl-4-nitro-imidazol-5-yl)-4-(prop-2-yn-1-yl) piperazine, C18H21N5O2
  12. Crystal structure of (μ4-(1,2,4,5-tetra(1,2,4-triazol-1-ylmethyl)-benzene-κ4N:N1:N2:N3)disilver(I) diperchlorate
  13. The crystal structure of 1-(2-bromoethane)-4-amine-3,5-dinitropyrazole, C5H6Br1N5O4
  14. Crystal structure of (E)-1-(4-benzyl-3,5-dioxomorpholin-2-ylidene)ethyl acetate, C15H15N1O5
  15. The crystal structure of poly[diaqua-(μ2-1,2,4,5-tetrakis(1,2,4-triazol-1-ylmethyl)-benzene-κ2N:N′)-bis(μ3-terephthalato-κ3O:O′:O′′)dicadmium(II)], C17H15N6O5Cd
  16. Crystal structure of (E)-N′-(1-(5-chloro-2-hydroxyphenyl) ethylidene)thiophene-2-carbohydrazide, C13H11ClN2O2S
  17. The crystal structure of [(2,2′-bipyridine-k2 N,N)-bis(6-phenylpyridine-2-carboxylato-k2 N,O)cobalt(II)]-monohydrate, C36H26N4O5Co
  18. Crystal structure of (E)-N′-(2-chloro-6-hydroxybenzylidene)-3-hydroxybenzo-hydrazide monohydrate, C14H13ClN2O4
  19. Crystal structure of 1,1′-(methylene)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2S:S)nickel(II), C42H30N14Ni2S8
  20. Crystal structure of 1,1′-(1,2-ethanediyl)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S:S)nickel(II), C20H14N6NiS4
  21. The crystal structure of 1-methyl-1H-pyrazol-2-ium nitrate, C4H7O3N3
  22. The crystal structure of 4,4′-diselanediylbis(8-(hexyloxy)-3,6-dimethyl-1-(piperidin-1-yl)isoquinoline-7-carbonitrile), C46H60N6O2Se2
  23. The crystal structure of tris(6-methylpyridin-2-yl)phosphine selenide, C18H18N3PSe
  24. The crystal structure of 1,2-bis(2,4-dinitro-1H-imidazol-1-yl)ethane ─ acetone (1/1), C11H12N8O9
  25. Crystal structure of [diaqua[2,2′-(1,2-phenylene)bis(1H-imidazole-4-carboxylato-5-carboxy)-κ4N,N′,O,O′]nickel(II)] tetrahydrate, C16H12N4NiO10·4H2O
  26. The crystal structure of tris(4-methyl-1H-pyrazol-1-yl)methane, C13H16N6
  27. The crystal structure of 5,6-dichloro-2-(quinolin-8-yl)isoindoline-1,3-dione, C17H8Cl2N2O2
  28. Crystal structure of (E)-(2-methoxy-benzylidene)-(4-[1,2,4]triazol-1-yl-phenyl)-amine, C16H14N4O
  29. The crystal structure of (Z)-2-(4-(4-bromophenyl)thiazol-2-yl)-4-(3-hydroxybut-2-enoyl)-5-methyl -1,2-dihydro-3H-pyrazol-3-one – methanol (1/1), C18H18N3O4S
  30. Crystal structure of tetraaqua-tris(nitrato-κ2 O,O′) erbium(III) monohydrate, Er(NO3)3·5H2O, H10ErN3O14
  31. The crystal structure of 1-methyl-2-nitro-1H-imidazole 3-oxide, C4H5N3O3
  32. The crystal structure of 1-methyl-2-nitroimidazole, C4H5N3O2
  33. The crystal structure of 2-carboxyl-4-nitroimidazole monohydrate, C4H5N3O5
  34. Crystal structure of bis[hydrido-hexaphenylcarbodiphosphoran][tetra-trifluoromethyl-(μ-diiodo)-diplatinat]
  35. The crystal structure of poly[μ2-aqua- aqua-(μ3-(E)-2-(4-((2-carbamothioylhydrazineylidene)methyl)phenoxy)acetato-κ3 O:S:S)sodium(I)], C10H14N3O5SNa
  36. The twinned crystal structure of [4,4′-bipyridine]-1,1′-diium hexachloridostannate(IV), C10H10N2SnCl6
  37. The crystal structure of [(2,2′-bipyridine-k2 N,N)-bis(6-phenylpyridine-2-carboxylate-k2 N,O)copper(II)], C34H24N4O4Cu
  38. Crystal structure of trans-1,2-bis(pyridinium-4-yl) ethylene bis(2-carboxy-4-bromobenzoate) – water (1/4), C14H14BrNO6
  39. Crystal structure of poly[diaqua-(μ3-fumarato)-(μ3-maleato)-(μ4-1,2,4,5-tetrakis((1H-1,2,4-triazol-1-yl)methyl)benzene)tetracadmium(II)] dihydrate, C34H32N12O9Cd4
  40. Crystal structure of a second modification of Pachypodol, C18H16O7
  41. Crystal structure of methyl 2-(4-(2-(cyclopentyl-amino)-1-(N-(4-methoxyphenyl)-1-methyl-5-phenyl-1-H-pyrazole-3-carboxamido)-2-oxoethyl)phenyl)acetate, C34H36N4O5
  42. The crystal structure of catena-poly[(m2-4,4′-bipyridine-κ2 N:N)-bis(6-phenylpyridine-2-carboxylato-κ2 N,O) zinc(II)], C34H24N4O4Zn
  43. The crystal structure of hexaquamagnesium(II) (2,4-bis(nitroimino)-6-oxo-1,3,5-triazinane-1,3-diide), C3H15MgN7O12
  44. The crystal structure of 7-Bromo-2-(4-chloro-phenyl)-quinoxaline, C14H9BrClN2
  45. Crystal structure of methyl 4-{[4-(4-cyanobenzamido)phenyl]amino}benzofuro[2,3-d]pyrimidine-6-carboxylate, C26H17N5O4
  46. The crystal structure of (4SR)-7-(3,4-dichlorobenzyl)-4,8,8-trimethyl-7,8-dihydroimidazo[5,1c][1,2,4]triazine-3,6(2H,4H)-dione, C15H16Cl2N4O2
  47. Crystal structure of catena-poly[{μ2-3-carboxy-2,3-bis((4-methylbenzoyl)oxy)propanoato-κ2 O:O′}tris(methanol-κ1 O)lanthanum(III)], C63H63LaO27
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