Startseite The crystal structure of (S, R p )-4–benzhydrylideneamino-12-(4-tert-butyl oxazolin-2-yl)[2.2]paracyclophane, C36H36N2O
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The crystal structure of (S, R p )-4–benzhydrylideneamino-12-(4-tert-butyl oxazolin-2-yl)[2.2]paracyclophane, C36H36N2O

  • Zhen Chen ORCID logo , Yanwen Sun EMAIL logo , Chao Chen , Nuo Xu , Xiaozhong Wang und Sijun Li
Veröffentlicht/Copyright: 7. Juni 2023
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Zeitschrift für Kristallographie - New Crystal Structures
Aus der Zeitschrift Zeitschrift für Kristallographie - New Crystal Structures Band 238 Heft 4

Abstract

C 36 H 36 N 2 O, orthorhombic, P 2 1 2 1 2 1 (no. 19), a = 11.849(2) Å, b = 14.373(3) Å, c = 17.183(3) Å, V = 2926.4(10)  Å 3 , Z = 4, R g t (F) = 0.0514, w R r e f ( F 2 ) = 0.1272, T = 296(2) K.

CCDC no.: 2258478

The molecular 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: Yellow block
Size: 0.20 × 0.20 × 0.15 mm
Wavelength: Cu Kα radiation (1.54178 Å)
μ: 0.53 mm−1
Diffractometer, scan mode: Bruker Smart Apex II, φ and ω
θ max, completeness: 63.9°, 99 %
N(hkl)measured, N(hkl)unique, R int: 13,540, 4716, 0.068
Criterion for I obs, N(hkl)gt: I obs > 2σ(I obs), 3141
N(param)refined: 411
Programs: Bruker [1], Olex2 [2], SHELX [3, 4], Diamond [5]
Table 2:

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

Atom x y z U iso*/U eq
O1 −0.7987 (3) −0.1290 (3) −0.08036 (18) 0.0792 (11)
N1 −0.7140 (4) −0.0590 (3) −0.1808 (2) 0.0703 (12)
N2 −0.8916 (3) −0.3639 (3) −0.0840 (2) 0.0552 (9)
C1 −1.1319 (5) −0.3073 (4) −0.1626 (3) 0.0693 (14)
H1A −1.127 (4) −0.294 (3) −0.108 (3) 0.055 (12)*
H1B −1.210 (6) −0.309 (4) −0.185 (4) 0.11 (2)*
C2 −1.0815 (5) −0.4074 (4) −0.1788 (3) 0.0660 (13)
H2A −1.083 (4) −0.438 (3) −0.133 (3) 0.054 (12)*
H2B −1.136 (5) −0.434 (4) −0.216 (3) 0.10 (2)*
C3 −0.9640 (4) −0.4046 (3) −0.2107 (3) 0.0577 (11)
C4 −0.8721 (4) −0.3751 (3) −0.1654 (2) 0.0532 (11)
C5 −0.7783 (4) −0.3360 (3) −0.2007 (3) 0.0586 (12)
H5 −0.725 (4) −0.308 (3) −0.172 (3) 0.065 (15)*
C6 −0.7710 (4) −0.3245 (4) −0.2806 (3) 0.0628 (13)
C7 −0.8501 (5) −0.3735 (4) −0.3251 (3) 0.0673 (14)
H7 −0.844 (4) −0.370 (4) −0.384 (3) 0.090 (18)*
C8 −0.9428 (5) −0.4133 (4) −0.2903 (3) 0.0650 (13)
H8 −0.999 (4) −0.437 (3) −0.323 (3) 0.069 (15)*
C9 −0.7016 (5) −0.2461 (4) −0.3144 (3) 0.0752 (15)
H9A −0.670 (4) −0.272 (4) −0.367 (3) 0.077 (16)*
H9B −0.638 (6) −0.229 (5) −0.281 (4) 0.12 (2)*
C10 −0.7730 (5) −0.1561 (4) −0.3305 (3) 0.0671 (14)
H10A −0.726 (5) −0.104 (4) −0.318 (3) 0.072 (16)*
H10B −0.790 (4) −0.158 (3) −0.384 (3) 0.068 (14)*
C11 −0.8827 (4) −0.1537 (3) −0.2854 (3) 0.0561 (11)
C12 −0.9810 (5) −0.1830 (4) −0.3229 (3) 0.0658 (14)
H12 −0.980 (3) −0.184 (3) −0.373 (3) 0.044 (12)*
C13 −1.0713 (5) −0.2207 (4) −0.2831 (3) 0.0641 (13)
H13 −1.127 (5) −0.247 (3) −0.313 (3) 0.067 (15)*
C14 −1.0664 (4) −0.2327 (3) −0.2033 (3) 0.0582 (11)
C15 −0.9804 (4) −0.1840 (3) −0.1647 (3) 0.0543 (11)
H15 −0.974 (4) −0.183 (3) −0.108 (3) 0.058 (13)*
C16 −0.8896 (4) −0.1458 (3) −0.2038 (3) 0.0531 (11)
C17 −0.7960 (4) −0.1078 (3) −0.1573 (2) 0.0558 (11)
C18 −0.6972 (5) −0.0903 (4) −0.0473 (3) 0.0728 (14)
H18A −0.648022 −0.139299 −0.028449 0.087*
H18B −0.715134 −0.048987 −0.004421 0.087*
C19 −0.6414 (4) −0.0371 (3) −0.1131 (3) 0.0625 (12)
H19 −0.566449 −0.063733 −0.122212 0.075*
C20 −0.6288 (5) 0.0673 (4) −0.1009 (3) 0.0718 (13)
C21 −0.7428 (6) 0.1122 (5) −0.0823 (5) 0.113 (3)
H21A −0.793416 0.103069 −0.125306 0.169*
H21B −0.732519 0.177566 −0.073566 0.169*
H21C −0.774002 0.083961 −0.036488 0.169*
C22 −0.5459 (5) 0.0844 (4) −0.0345 (3) 0.0850 (17)
H22A −0.575949 0.058888 0.012831 0.128*
H22B −0.534395 0.150071 −0.028218 0.128*
H22C −0.475216 0.054925 −0.046224 0.128*
C23 −0.5800 (7) 0.1095 (5) −0.1745 (4) 0.118 (3)
H23A −0.512542 0.076661 −0.188707 0.177*
H23B −0.562488 0.173780 −0.165514 0.177*
H23C −0.634204 0.104654 −0.215858 0.177*
C24 −0.8218 (4) −0.3921 (3) −0.0318 (2) 0.0522 (10)
C25 −0.8458 (4) −0.3661 (3) 0.0498 (3) 0.0549 (11)
C26 −0.9105 (4) −0.2879 (3) 0.0664 (3) 0.0597 (12)
H26 −0.934721 −0.249822 0.025945 0.072*
C27 −0.9393 (5) −0.2661 (4) 0.1421 (3) 0.0717 (14)
H27 −0.982847 −0.213653 0.152456 0.086*
C28 −0.9032 (5) −0.3224 (4) 0.2025 (3) 0.0793 (16)
H28 −0.924475 −0.308724 0.253297 0.095*
C29 −0.8364 (5) −0.3981 (4) 0.1877 (3) 0.0763 (15)
H29 −0.810673 −0.434790 0.228636 0.092*
C30 −0.8072 (4) −0.4200 (4) 0.1118 (3) 0.0669 (13)
H30 −0.761243 −0.471152 0.102143 0.080*
C31 −0.7229 (4) −0.4537 (3) −0.0469 (2) 0.0559 (11)
C32 −0.6169 (5) −0.4267 (5) −0.0226 (3) 0.0838 (17)
H32 −0.607411 −0.369694 0.002154 0.101*
C33 −0.5247 (6) −0.4836 (6) −0.0349 (5) 0.119 (3)
H33 −0.453098 −0.464117 −0.019855 0.143*
C34 −0.5391 (7) −0.5698 (6) −0.0696 (4) 0.117 (3)
H34 −0.477698 −0.609107 −0.077033 0.140*
C35 −0.6460 (7) −0.5967 (5) −0.0932 (4) 0.097 (2)
H35 −0.656317 −0.654524 −0.116411 0.117*
C36 −0.7372 (5) −0.5385 (4) −0.0825 (3) 0.0714 (14)
H36 −0.808385 −0.556655 −0.099458 0.086*

1 Source of materials

We started the synthesis of 4–Benzhydrylideneamino-12-(4-tert-butyl oxazolin-2-yl)[2.2]paracyclophane from 4-bromo-12-(4-tert-butyl oxazolin-2-yl) [2.2]paracyclophane diastereomers, which were prepared from racemic 4,12-dibromo[2.2]paracyclophane according to the literature [6, 7]. The (S, S p )-diastereomer-dominated and (S, R p )-diastereomer-dominated products were obtained by column chromatography of separation (ethyl acetate: petroleum ether = 1:25 and a small amount of triethylamine 5 drops/500 mL). For (S, R p )-diastereomer based products, a small amount of (S, S p )-diastereomer was further removed by ethanol recrystallization. The remaining (S, R p )-product was recrystallized with n-hexane affording yellow crystals.

2 Experimental details

The structure was solved by Direct Methods with the SHELX [3]. All H-atoms were positioned geometrically and refined using a riding model with d(C–H) = 0.93 Å, U i s o  = 1.2 U e q (C) for aromatic, 0.97 Å, U i s o  = 1.2 U e q (C) for C H 2 , 0.98 Å, U i s o  = 1.2 U e q (C) for CH, 0.96 Å, U i s o  = 1.5 U e q (C) for C H 3 atoms.

3 Comment

The [2.2]paracyclophane derivatives play an important role in asymmetric catalysis [8]. Substituted [2.2]paracyclophanes with planar chirality used as ligands and proceed in asymmetric catalysis were first reported in 1997 [9]. Since then, many planar chiral [2.2]paracyclophane derivatives have been synthesized and applied in all kinds of asymmetric transformations. The synthesis of double chiral ligands with a planar chiral [2.2]paracyclophane is a hot topic. It is a good strategy to construct bichiral ligands by introducing oxazoline derivatives which have excellent coordination ability and center chirality to [2.2]paracyclophane skeleton. It is important to study the crystal structure of double-chiral ligands for the study of its catalytic mechanism. We previously reported a crystal structure of (S, S p )tert-butyl 2-(4-(12-bromo [2.2]paracyclophanyl) carbamoyl) pyrrolidine-1-carboxylate.

The structure of the title compound is illustrated in the figure, its absolute conguration of the [2.2]paracyclophane moiety is established as (R p ) by comparison with the known conguration of the S-oxazoline moiety. The single-crystal structure verifies that all bond lengths are in normal ranges. The constrained [2.2]paracyclophane core gives boatlike conformation as well as the similar pseudo-para substituted structure [10], but the direction of methylene bonds C1–C2 and C9–C10 is twisted rather than parallel, the nonbonded C–C distance between the ipso carbons, C3 and C14 (2.75 Å) is also not exactly same with C6 and C11(2.79 Å). The two planes across C4/C5/C7/C8 and C12/C13/C15/C16 are not parallel like pseudo-para substituted structure [10], the dihedral angles up to 2.75(3)° which is the same than in the similar pseudo-ortho substituted structure (2.79(4)°) [11]. Additionally, the side with substituents C4/C5 and C15/C16 are closer to each other than the other side which is similar to (S p , S) tert-butyl 2-(4-(12-bromo [2.2]paracyclophanyl) carbamoyl) pyrrolidine-1-carboxylate and unusual to other similar structures [11], [12], [13]. This may be due to the involvement of substituents in intermolecular interactions. There are only intermolecular interactions and non-classical hydrogen bonds in this molecule. The presence of non-classical hydrogen bonds between C–H donors and the aromatic C atom from other molecules [ C 30 – H 30 ⋯ C 7 i symmetry code i: − 3/2−x, −1−y, 1/2 + z] results in the formation of one-dimensional chain-like structure along the [001] direction. The one-dimensional structures are further connected by non-classical hydrogen bonds [ C 19 – H 19 ⋯ C 27 i i or C 28 i i symmetry code ii: 1/2 + x, −1/2 − y, −z] forming three-dimensional supramolecular structure.

Corresponding author: Yanwen Sun, School of Chemistry and Chemical Engineering, Hebei Normal University For Nationalities, Higher Education Park, Chengde 067000, P. R. China, E-mail:

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

  2. Research funding: Scientific Research Program Funded by Hebei Province Education Department (BJ2019205) and the 2022 fund project of Hebei Normal University For Nationalities (grant No. QN2022001).

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

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Received: 2023-05-04
Accepted: 2023-05-24
Published Online: 2023-06-07
Published in Print: 2023-08-28

© 2023 the author(s), published by De Gruyter, Berlin/Boston

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

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  48. Crystal structure of (E)-2,4-di-tert-butyl-6-(((2-fluorophenyl)imino) methyl)phenol, C21H26FNO
  49. Synthesis and crystal structure of 3-methyl-2-(methylthio)-4H-chromen-4-one, C12H12O2S
  50. Crystal structure of dithieno[2,3-d:2′,3′-d′]benzo[1,2-b:4,5-b′]dithiophene-5,10-dione, C14H4O2S4
  51. The crystal structure of dimethyl 2,2ʹ-((adamantane-1,3-diylbis(4,1-phenylene)) bis(oxy))diacetate, C28H32O6
  52. The crystal structure of N-(6-chloro-2-methyl-2H-indazol-5-yl)acetamide, C10H10ClN3O
  53. Crystal structure of triaqua-(5-bromoisophthalato-κ1 O)-(2,2′-bipyridine-κ2 N:N′)nickel(II) hydrate, C18H19BrN2NiO8
  54. The crystal structure of 2-amino-4-carboxypyridin-1-ium perchlorate, C6H7ClN2O6
  55. The crystal structure of catena-poly[5-aminonicotinic acid-k1 N-m2-bromido-copper(I)], Cu(C6N2H6O2)Br
  56. The crystal structure of 2,2-bis(3-methoxyphenyl)-1-tosyl-1,2-dihydro- 2λ4,3λ4  -[1,3,2]diazaborolo[4,5,1-ij]quinoline - dichloromethane (1/1)
  57. The crystal structure of catena-poly[bis(6-phenylpyridine-2-carboxylato-κ2 N,O)-(μ2-4,4′-bipyridne-κ2 N:N)cadmium(II)], C34H24N4O4Cd
  58. The crystal structure of 5,7-dinitropyrazolo[5,1-b]quinazolin-9(4H)-one, C10H5N5O5
  59. Crystal structure of rac-1,8-bis(2-carbamoylethyl)-5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane, C22H46N6O2
  60. The crystal structure of (E)-N ′-(2-bromobenzylidene)-2-naphthohydrazide, C36H26Br2N4O2
  61. The crystal structure of 5-nitronaphthoquinone, C10H5NO4
  62. The crystal structure of (S, R p )-4–benzhydrylideneamino-12-(4-tert-butyl oxazolin-2-yl)[2.2]paracyclophane, C36H36N2O
  63. Synthesis and crystal structure of 2-(2-oxo-2-(o-tolyl)ethyl)-4H-chromen-4-one, C18H14O3
  64. Crystal structure of 2-(thiazol-2-yl)hexahydro-1H-4,7-epoxyisoindole-1,3(2H)-dione, C11H10N2O3S
  65. Crystal structure of N-(diaminomethylene)-1-(dimethylamino)-1-iminiomethanaminium dichloride, C4H13Cl2N5
  66. Crystal structure of poly[(μ3-3, 5-dichloro-2-hydroxy-benzoato-κ4 Cl,O:O′:O″) silver(I)], C7H3AgCl2O3
  67. The crystal structure of tetrakis(1-isopropylimidazole-κ1 N)-[μ2- imidazole-4,5-dicarboxylato-κ4 O,N,O′,N′)]- trioxido-divanadium, C29H41N10O7V2
  68. Crystal structure of catena-[(μ3-bromido)-(1H-1,2,4-triazol-1-yl)benzoato-κ1 N)copper(I)], C9H7BrCuN3O2
  69. The crystal structure of (E)-4-fluoro-N′-(1-(2-hydroxyphenyl)propylidene)benzohydrazide, C16H15FN2O2
https://doi.org/10.1515/ncrs-2023-0212
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Artikel in diesem Heft

  1. Frontmatter
  2. New Crystal Structures
  3. Crystal structure of a polymorph of potassium picrate, C6H2KN3O7
  4. The crystal structure of (1E,2E)-1,2-bis(quinolin-2-ylmethylene)hydrazine, C20H14N4
  5. 5-Amino-2-chloro-4-fluoro-N-(N-isopropyl-N-methylsulfamoyl) benzamide, C11H15O3ClFN3S
  6. Crystal structure of trans-N 1,N 8-bis(2-cyanoethyl)-5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane, C22H42N6
  7. The crystal structure of [N-{[2-(oxy)-4-methoxyphenyl](phenyl)methylidene}alaninato]-diphenyl-silicon(IV) – chloroform (1/1), C29H25NO4Si·CHCl3
  8. Crystal structure of tetracarbonyl-{μ-[N-(diphenylphosphanyl)-N,P,P-triphenylphosphinous amide]}-bis[μ-(phenylmethanethiolato)]diiron (Fe–Fe), C48H39Fe2NO4P2S2
  9. Crystal structure of baryte from Mine du Pradet (France)
  10. The crystal structure of [(2,2′-bipyridine-6-carboxylato-κ3 N,N,O)-(6-phenylpyridine-2-carboxylate-κ2 N,O)copper(II)] monohydrate, C23H17N3O5Cu
  11. Crystal structure of bis(μ-benzeneselenolato)-(μ-[N-benzyl-N-(diphenylphosphanyl)-P,P-diphenylphosphinous amide])-tetracarbonyl diiron (Fe–Fe), C47H37Fe2NO4P2Se2
  12. The crystal structure of diaqua-methanol-κ1 O- (3-thiophenecarboxylato-κO)-(2,2′-dipyridyl-κ2 N,N′)manganese(II) 3-thiophenecarboxylate, C21H22N2O7S2Mn
  13. Crystal structure of catena-poly[tetrakis(butyl)-μ2-2-((oxido(phenyl)methylene)hydrazineylidene)propanoato-κ4 O:O,O′,N-μ2-2-((oxido(phenyl)methylene)hydrazineylidene)propanoato-κ4 O,N,O′:N′-ditin(IV)], C34H50N6O6Sn2
  14. Crystal structure of 4-chloro-N′-[(1E)-(2-nitrophenyl)methylidene]benzohydrazide, C14H10ClN3O3
  15. The crystal structure of 3-(1′-deoxy-3′,5′-O-dibenzy-β-d-ribosyl)adenine dichloromethane solvate, C49H52Cl2N10O6
  16. The crystal structure of (Z)-4-amino-N′-(1-(o-tolyl)ethylidene)benzohydrazide, C16H17N3O
  17. The co-crystal structure of etoricoxib–phthalic acid (1/1), C18H15ClN2O2S·C8H6O4
  18. Crystal structure of (glycinto-κ 2 O,N ′)-[5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ 4 N,N ′,N ″,N ‴]nickel(II) perchlorate monohydrate C18H42ClN5NiO7
  19. The crystal structure of catena-poly[bis(1-ethylimidazole-k1 N)-(μ 2-benzene-1-carboxyl-3,5-dicarboxylato-κ 2 O, O′)zinc(II)], C19H20N4O6Zn
  20. Crystal structure of 3-(thiazol-2-ylcarbamoyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid, C11H12N2O4S
  21. Rietveld structure analysis of keatite, a rare, metastable SiO2 polymorph
  22. Crystal structure of catena-poly[(μ2-isophthalato-k3 O,O′:O″)(4-(4-pyridyl)-2,5-dipyrazylpyridine-k3 N,N′,N″)cobalt(II)] trihydrate C26H22N6O7Co1
  23. Crystal structure of 3,5–di-O-benzoyl-1,2-O-isopropylidene-α–D-ribose, C22H22O7
  24. The crystal structure of fac-tricarbonyl(6-bromo-2,2-bipyridine-κ2 N,N)-(nitrato-κO)rhenium(I), C13H7BrN3O6Re
  25. The crystal structure of (E)-N′-(4-hydroxy-3-methoxybenzylidene)-2-naphthohydrazide monohydrate, C19H18N2O4
  26. The crystal structure of 5,5′-diselanediyl-bis(2-hydroxybenzaldehyde), C14H10O4Se2
  27. The crystal structure of catena-poly[diaqua-m2-dicyanido-κ2 C:N-dicyanido-κ1 C-bis(4-(pyridin-4-yl)benzaldehyde-κ1N)iron(II)-platinum(II), C28H22N6O4PtFe
  28. Redetermination of the crystal structure of 5,14-dihydro-6,17-dimethyl-8,15-diphenyldibenzo(b,i)(1,4,8,11)tetra-azacyclotetradecine, C32H28N4
  29. Crystal structure of poly[(μ3-2-(3,5-dicarboxyphenyl) benzimidazole-6-carboxylato-κ4O:O:O′:O″)lead(II)] monohydrate, C16H10N2O7Pb
  30. The crystal structure of fac-tricarbonyl(2-pyridin-2-yl-quinoline-κ2 N,N′)-(pyrazole-κN)rhenium(I)nitrate, C20H14N4O3ReNO3
  31. Crystal structure of dibromo-dicarbonyl-bis(tricyclohexylphosphine)-osmium(II) dichloromethane solvate, C38H66Br2O2OsP2
  32. Crystal structure of poly[bis(μ 2-2,6-bis(1-imidazoly)pyridine-κ 2 N:N′)copper(II)] diperchlorate dihydrate, C22H22Cl2CuN10O10
  33. The crystal structure of fac-tricarbonyl(N-benzoyl-N,N-cyclohexylmethylcarbamimidothioato-κ2 S,O)-(pyridine-κN)rhenium(I), C23H24N3O4ReS
  34. Crystal structure of (E)-7-fluoro-2-(4-fluorobenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C17H12F2O
  35. Synthesis and crystal structure of 1-((3R,10S,13S, 17S)-3-((2-methoxyphenyl)amino)-10,13-dimethylhexadecahydro-1H-cyclopenta[α]phenanthren-17-yl)ethan-1-one, C28H41NO2
  36. The crystal structure of fac-tricarbonyl((pyridin-2-yl)methanamino-κ2 N,N′)-((pyridin-2-yl)methanamino-κN)rhenium(I) nitrate, C15H16O3N4Re
  37. The crystal structure of (1-(pyridin-2-yl)-N-(pyridin-2-ylmethyl)-N-((1-(4-vinylbenzyl)-1H-benzo[d]imidazol-2-yl)methyl)methanamine-κ 4 N,N′,N″,N‴)tris(nitrato-kO,O′)-erbium(III), C29H27ErN8O9
  38. Crystal structure of tetracene-5,12-dione, C18H10O2
  39. Crystal structure of (3R,3aS,6R,6aR)-6-hexyl-3-methyltetrahydrofuro[3,4-b]furan-2,4-dione, C13H20O4
  40. The crystal structure of N′1,N′3-bis((E)-thiophen-2-ylmethylene)isophthalohydrazide monohydrate, C18H16N4O3S2
  41. Crystal structure of methyl ((4-aminobenzyl)sulfonyl)-L-prolinate, C13H18N2O4S
  42. Crystal structure of (E)-3-(3-methoxybenzylidene)benzofuran-2(3H)-one, C16H12O3
  43. Synthesis and crystal structure (E)-1-(4-bromo-2-hydroxyphenyl)-3-(dimethylamino)prop-2-en-1-one, C11H12BrNO2
  44. Synthesis and crystal structure of (S,E)-4-hydroxy-3-(2-((4aR,6aS,7R,10aS,10bR)-3,3,6a,10b-tetramethyl-8-methylenedecahydro-1H-naphtho[2,1-d][1,3]dioxin-7-yl)ethylidene)dihydrofuran-2(3H)-one, C23H34O5
  45. The crystal structure of N,N′-(1,2-phenylene)bis (2-((2-oxopropyl)selanyl)benzamide), C26H24N2O4Se2
  46. The crystal structure of 1-ethyl-2-nitro-imidazole oxide, C5H7N3O3
  47. The crystal structure of 2-(2-fluorophenyl)naphtho[2,1-d]thiazole, C17H10FNS
  48. Crystal structure of (E)-2,4-di-tert-butyl-6-(((2-fluorophenyl)imino) methyl)phenol, C21H26FNO
  49. Synthesis and crystal structure of 3-methyl-2-(methylthio)-4H-chromen-4-one, C12H12O2S
  50. Crystal structure of dithieno[2,3-d:2′,3′-d′]benzo[1,2-b:4,5-b′]dithiophene-5,10-dione, C14H4O2S4
  51. The crystal structure of dimethyl 2,2ʹ-((adamantane-1,3-diylbis(4,1-phenylene)) bis(oxy))diacetate, C28H32O6
  52. The crystal structure of N-(6-chloro-2-methyl-2H-indazol-5-yl)acetamide, C10H10ClN3O
  53. Crystal structure of triaqua-(5-bromoisophthalato-κ1 O)-(2,2′-bipyridine-κ2 N:N′)nickel(II) hydrate, C18H19BrN2NiO8
  54. The crystal structure of 2-amino-4-carboxypyridin-1-ium perchlorate, C6H7ClN2O6
  55. The crystal structure of catena-poly[5-aminonicotinic acid-k1 N-m2-bromido-copper(I)], Cu(C6N2H6O2)Br
  56. The crystal structure of 2,2-bis(3-methoxyphenyl)-1-tosyl-1,2-dihydro- 2λ4,3λ4  -[1,3,2]diazaborolo[4,5,1-ij]quinoline - dichloromethane (1/1)
  57. The crystal structure of catena-poly[bis(6-phenylpyridine-2-carboxylato-κ2 N,O)-(μ2-4,4′-bipyridne-κ2 N:N)cadmium(II)], C34H24N4O4Cd
  58. The crystal structure of 5,7-dinitropyrazolo[5,1-b]quinazolin-9(4H)-one, C10H5N5O5
  59. Crystal structure of rac-1,8-bis(2-carbamoylethyl)-5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane, C22H46N6O2
  60. The crystal structure of (E)-N ′-(2-bromobenzylidene)-2-naphthohydrazide, C36H26Br2N4O2
  61. The crystal structure of 5-nitronaphthoquinone, C10H5NO4
  62. The crystal structure of (S, R p )-4–benzhydrylideneamino-12-(4-tert-butyl oxazolin-2-yl)[2.2]paracyclophane, C36H36N2O
  63. Synthesis and crystal structure of 2-(2-oxo-2-(o-tolyl)ethyl)-4H-chromen-4-one, C18H14O3
  64. Crystal structure of 2-(thiazol-2-yl)hexahydro-1H-4,7-epoxyisoindole-1,3(2H)-dione, C11H10N2O3S
  65. Crystal structure of N-(diaminomethylene)-1-(dimethylamino)-1-iminiomethanaminium dichloride, C4H13Cl2N5
  66. Crystal structure of poly[(μ3-3, 5-dichloro-2-hydroxy-benzoato-κ4 Cl,O:O′:O″) silver(I)], C7H3AgCl2O3
  67. The crystal structure of tetrakis(1-isopropylimidazole-κ1 N)-[μ2- imidazole-4,5-dicarboxylato-κ4 O,N,O′,N′)]- trioxido-divanadium, C29H41N10O7V2
  68. Crystal structure of catena-[(μ3-bromido)-(1H-1,2,4-triazol-1-yl)benzoato-κ1 N)copper(I)], C9H7BrCuN3O2
  69. The crystal structure of (E)-4-fluoro-N′-(1-(2-hydroxyphenyl)propylidene)benzohydrazide, C16H15FN2O2
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Heruntergeladen am 10.11.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2023-0212/html?lang=de
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