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Acta Crystallographica Section E: Crystallographic Communications logoLink to Acta Crystallographica Section E: Crystallographic Communications
. 2016 Apr 8;72(Pt 5):659–662. doi: 10.1107/S2056989016005685

Supra­molecular inter­actions in a 1:1 co-crystal of acridine and 3-chloro­thio­phene-2-carb­oxy­lic acid

Olakkandiyil Prajina a, Packianathan Thomas Muthiah a,*, Franc Perdih b
PMCID: PMC4908530  PMID: 27308013

The asymmetric unit comprises one 3-chloro­thio­phene-2-carb­oxy­lic acid (3TPC) and one acridine mol­ecule linked together via an O—H⋯N hydrogen bond.

Keywords: crystal structure, 3-chloro­thio­phene-2-carb­oxy­lic acid, acridine

Abstract

In the title co-crystal, C5H3ClO2S·C13H9N, the components inter­act with each other via an O—H⋯N hydrogen bond. Acridine–acridine stacking, thio­phene–thio­phene stacking and acridine–thio­phene C—H⋯π inter­actions also occur in the crystal.

Chemical context  

Co-crystals are solids in which two or more mol­ecules crystallize together and interact through non-covalent inter­actions (Odiase et al., 2015 ▸). The study of non-covalent inter­actions in co-crystals not only adds to our knowledge but also has an undeniable relevance in the context of their pharmaceutical and biological inter­est (Chakraborty et al., 2014 ▸; Desiraju, 1989 ▸). The main inter­actions concerned are various hydrogen bonding, π–π and C—H⋯π inter­actions (Aakeröy et al., 2010 ▸). The acridine mol­ecule is a component present in anti­helminthic agents which are used in animals (Durchheimer et al., 1980 ▸). Acridine derivatives also show in vitro activity against protozoa (Ngadi et al., 1993 ▸). The acridine group is a well known inter­calator inter­acting with nucleobase pairs (Raju et al., 2016 ▸; Nafisi et al., 2007 ▸; Sazhnikov et al., 2013 ▸). Acridine dyes are also widely used (Solovyeva et al., 2014 ▸, Yasarawan et al., 2011 ▸). Halogenated thio­phene carb­oxy­lic acid derivatives are the building blocks of many commercially available insecticides (Hull et al., 2007 ▸). We extended our study on supra­molecular architectures in acridine mol­ecules with the investigation of the title co-crystal with 3-chloro­thio­phene-2-carb­oxy­lic acid (3TPC).graphic file with name e-72-00659-scheme1.jpg

Structural commentary  

The compound (1) is a 1:1 co-crystal of 3TPC and acridine. The inter­nal angle at N1 [C6—N1—C18 = 119.30 (15)°] and bond lengths [C18—N1 = 1.346 (2) and C6—N1 = 1.354 (2) Å] agree with those reported for neutral acridine structures (Aghabozorg et al., 2011 ▸; Binder et al., 1982 ▸; Goeta et al., 2002 ▸). The two external bond angles at the carbon atom of the carboxyl group are 124.13 (17) and 110.75 (15)°. The high discrepancy between these two angles is typical of an unionized carboxyl group. The C=O distance of 1.316 (2) Å and C—OH distance of 1.199 (2) Å are also typical of the carboxyl group. These values also agree with the carb­oxy­lic acids reported in the literature (Kowalska et al., 2015 ▸; Sienkiewicz-Gromiuk et al., 2016 ▸). The dihedral angle between the carboxylic acid group and the thiophene ring is 9.01 (13)°. The bond distances and angles involving the thio­phene ring agree with those in structures reported earlier (Zhang et al., 2014 ▸).

Supra­molecular features  

The 3TPC and acridine moieties are linked by an O—H⋯N hydrogen-bonding inter­action between (O1—H1) of the carboxyl group and the acridine nitro­gen atom (N1) (Table 1 ▸ and Fig. 1 ▸). This O—H⋯N hydrogen bond is reminiscent of the frequently used supra­molecular synthon in crystal engineering involving a carb­oxy­lic acid and a pyridine mol­ecule (Seaton, 2014 ▸; Lemmerer & Bernstein, 2010 ▸; Thomas et al., 2010 ▸). A similar type of supra­molecular synthon is observed in a series of nine co-crystals involving acridine and benzoic acids (Kowalska et al., 2015 ▸). This supra­molecular synthon is also present in the co-crystal of 5-chlorothiophene-2-carboxylic acid and acridine reported from our laboratory (Jennifer & Mu­thiah, 2014 ▸). This co-crystal and the title co-crystal differ only in the position of chlorine in the thio­phene ring. The hydrogen-bonded units are linked via π–π stacking inter­actions between the aromatic systems of acridine mol­ecules [Cg1⋯Cg1i = 3.6419 (9), Cg1⋯Cg1ii = 3.7526 (9), Cg1⋯Cg2ii = 3.7293 (12), Cg2⋯Cg3i = 3.6748 (12) and Cg2⋯Cg3ii = 3.7298 (12) Å where Cg1 is the centroid of the N1/C6/C11/C12/C13/C18 ring, Cg2 is the centroid of the C6–C11 ring and Cg3 is the centroid of the C13–C18 ring; symmetry codes: (i) −x, 2 − y,1 − z; (ii) 1 − x, 2 − y,1 − z] and between the thio­phene rings [Cg7⋯Cg7iii = 3.7611 (12) Å where Cg7 is the centroid of the thio­phene ring; symmetry code: (iii) 1 − x, 1 − y, −z]. The crystal structure also features C—H⋯π inter­actions, forming a three-dimensional supra­molecular architecture (Table 1 ▸ and Fig. 2 ▸).

Table 1. Hydrogen-bond geometry (Å, °).

Cg7 is the centroid of the thio­phene ring.

D—H⋯A D—H H⋯A D⋯A D—H⋯A
O1—H1⋯N1 0.82 1.83 2.615 (2) 159
C9—H9⋯Cg7i 0.93 2.94 3.773 (2) 150
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Symmetry code: (i) Inline graphic.

Figure 1.

Figure 1

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The asymmetric unit of the title compound, showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. The dashed line represents the O—H⋯N hydrogen bond.

Figure 2.

Figure 2

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A view of the O—H⋯N hydrogen bonds (purple dashed lines), π–π stacking (acridine–acridine and thio­phene–thio­phene; red dashed lines) and C—H⋯π inter­actions between the acridine C—H group and the π-system of thio­phene (green dashed lines).

Database survey  

The crystal structures of a number of acridine co-crystals, acridinium salts and their metal complexes have been investigated in a variety of crystalline environments such as diphenic acid–acridine (1:1) (Shaameri et al., 2001a ▸), 4,4′-bis­(hy­droxy­azo­benzene)–acridine (Chakraborty et al., 2014 ▸), orcinol–acridine (1:2) and orcinol–acridine (1:1) co-crystal hydrate (Mukherjee et al., 2011 ▸), acridinium isophthalate (Shaameri et al., 2001b ▸) and acridinium 6-carb­oxy­pyridine-2- carboxyl­ate monohydrate (Derikvand et al., 2011 ▸). A variety of metal complexes of acridine have also been reported (Ha, 2010 ▸, 2012 ▸; Sloufova & Slouf, 2000 ▸, 2001 ▸).

Synthesis and crystallization  

To 10 ml of a hot methanol solution of 3TPC (40.6 mg, 25 mmol) were added 10 ml of a hot methano­lic solution of acridine (44.8 mg, 25 mmol). The resulting solution was warmed over a water bath for half an hour and then kept at room temperature for crystallization. After a week yellow plate-like crystals of (1) were obtained.

Refinement  

Crystal data, data collection and structure refinement details are summarized in Table 2 ▸. All hydrogen atoms were readily located in difference Fourier maps and were subsequently treated as riding atoms in geometrically idealized positions, with C—H = 0.93 and O—H = 0.82 Å, and with U iso(H) = kU eq(C, O), where k = 1.5 for hy­droxy and 1.2 for all other H atoms.

Table 2. Experimental details.

Crystal data
Chemical formula C5H3ClO2S·C13H9N
M r 341.80
Crystal system, space group Triclinic, P Inline graphic
Temperature (K) 293
a, b, c (Å) 7.3371 (4), 8.3286 (5), 13.3819 (8)
α, β, γ (°) 107.577 (5), 97.706 (5), 93.953 (5)
V (Å3) 767.32 (8)
Z 2
Radiation type Mo Kα
μ (mm−1) 0.39
Crystal size (mm) 0.60 × 0.30 × 0.10
 
Data collection
Diffractometer Agilent SuperNova Dual Source diffractometer with an Atlas detector
Absorption correction Multi-scan (CrysAlis PRO; Agilent, 2013 ▸)
T min, T max 0.813, 1.000
No. of measured, independent and observed [I > 2σ(I)] reflections 7182, 3516, 2722
R int 0.022
(sin θ/λ)max (Å−1) 0.649
 
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S 0.038, 0.109, 1.02
No. of reflections 3516
No. of parameters 209
H-atom treatment H-atom parameters constrained
Δρmax, Δρmin (e Å−3) 0.21, −0.23
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Computer programs: CrysAlis PRO (Agilent, 2013 ▸), SHELXS97 (Sheldrick, 2008 ▸), SHELXL2014 (Sheldrick, 2015 ▸), PLATON (Spek, 2009 ▸) and Mercury (Macrae et al., 2008 ▸), PLATON (Spek, 2009 ▸) and publCIF (Westrip, 2010 ▸).

Supplementary Material

Crystal structure: contains datablock(s) I. DOI: 10.1107/S2056989016005685/hg5473sup1.cif

e-72-00659-sup1.cif (276.6KB, cif)

Structure factors: contains datablock(s) I. DOI: 10.1107/S2056989016005685/hg5473Isup2.hkl

e-72-00659-Isup2.hkl (280.5KB, hkl)
Click here for additional data file. (5.6KB, cml)

Supporting information file. DOI: 10.1107/S2056989016005685/hg5473Isup3.cml

CCDC reference: 1472507

Additional supporting information: crystallographic information; 3D view; checkCIF report

Acknowledgments

OKP thanks the UGC–SAP and UGC–BSR India for the award of an RFSMS. PTM is thankful to the UGC, New Delhi, for a UGC–BSR one-time grant to Faculty. FP thanks the Slovenian Research Agency for financial support (P1–0230-0175), as well as the EN–FIST Centre of Excellence, Slovenia, for use of the SuperNova diffractometer

supplementary crystallographic information

Crystal data

C5H3ClO2S·C13H9N Z = 2
Mr = 341.80 F(000) = 352
Triclinic, P1 Dx = 1.479 Mg m−3
a = 7.3371 (4) Å Mo Kα radiation, λ = 0.71073 Å
b = 8.3286 (5) Å Cell parameters from 2635 reflections
c = 13.3819 (8) Å θ = 3.9–29.2°
α = 107.577 (5)° µ = 0.39 mm−1
β = 97.706 (5)° T = 293 K
γ = 93.953 (5)° Plate, yellow
V = 767.32 (8) Å3 0.60 × 0.30 × 0.10 mm
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Data collection

Agilent SuperNova Dual Source diffractometer with an Atlas detector 3516 independent reflections
Radiation source: SuperNova (Mo) X-ray Source 2722 reflections with I > 2σ(I)
Detector resolution: 10.4933 pixels mm-1 Rint = 0.022
ω scans θmax = 27.5°, θmin = 2.8°
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2013) h = −9→8
Tmin = 0.813, Tmax = 1.000 k = −10→10
7182 measured reflections l = −17→17
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Refinement

Refinement on F2 0 restraints
Least-squares matrix: full Hydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.038 H-atom parameters constrained
wR(F2) = 0.109 w = 1/[σ2(Fo2) + (0.0488P)2 + 0.133P] where P = (Fo2 + 2Fc2)/3
S = 1.02 (Δ/σ)max < 0.001
3516 reflections Δρmax = 0.21 e Å−3
209 parameters Δρmin = −0.23 e Å−3
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Special details

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.
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Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)

x y z Uiso*/Ueq
Cl1 0.21228 (7) 0.16757 (7) −0.02749 (4) 0.05748 (17)
S1 0.69521 (6) 0.48402 (6) 0.14957 (4) 0.04516 (15)
O1 0.42177 (19) 0.63242 (19) 0.26579 (11) 0.0581 (4)
H1 0.3486 0.6911 0.2968 0.087*
O2 0.16569 (18) 0.49072 (19) 0.15614 (11) 0.0569 (4)
N1 0.26273 (19) 0.85354 (18) 0.39993 (11) 0.0390 (3)
C1 0.3309 (2) 0.5158 (2) 0.18026 (14) 0.0392 (4)
C2 0.4606 (2) 0.4179 (2) 0.11735 (13) 0.0366 (4)
C3 0.4277 (2) 0.2754 (2) 0.03048 (14) 0.0403 (4)
C4 0.5886 (3) 0.2201 (3) −0.00919 (16) 0.0499 (5)
H4 0.5890 0.1248 −0.0675 0.060*
C5 0.7426 (3) 0.3226 (3) 0.04802 (16) 0.0512 (5)
H5 0.8614 0.3061 0.0331 0.061*
C6 0.2995 (2) 0.8560 (2) 0.50232 (14) 0.0367 (4)
C7 0.3599 (2) 0.7110 (2) 0.52526 (16) 0.0451 (4)
H7 0.3756 0.6162 0.4701 0.054*
C8 0.3948 (3) 0.7096 (3) 0.62689 (17) 0.0508 (5)
H8 0.4331 0.6131 0.6407 0.061*
C9 0.3742 (3) 0.8518 (3) 0.71176 (16) 0.0505 (5)
H9 0.3994 0.8485 0.7811 0.061*
C10 0.3179 (3) 0.9933 (3) 0.69378 (15) 0.0470 (5)
H10 0.3050 1.0864 0.7508 0.056*
C11 0.2784 (2) 1.0008 (2) 0.58805 (14) 0.0374 (4)
C12 0.2206 (2) 1.1415 (2) 0.56483 (14) 0.0406 (4)
H12 0.2070 1.2375 0.6197 0.049*
C13 0.1826 (2) 1.1413 (2) 0.45997 (15) 0.0397 (4)
C14 0.1250 (3) 1.2834 (3) 0.43165 (18) 0.0521 (5)
H14 0.1088 1.3814 0.4843 0.063*
C15 0.0936 (3) 1.2765 (3) 0.3283 (2) 0.0606 (6)
H15 0.0577 1.3706 0.3104 0.073*
C16 0.1148 (3) 1.1285 (3) 0.24777 (19) 0.0631 (6)
H16 0.0921 1.1263 0.1773 0.076*
C17 0.1677 (3) 0.9888 (3) 0.27050 (16) 0.0528 (5)
H17 0.1788 0.8915 0.2159 0.063*
C18 0.2061 (2) 0.9916 (2) 0.37835 (14) 0.0398 (4)
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Atomic displacement parameters (Å2)

U11 U22 U33 U12 U13 U23
Cl1 0.0514 (3) 0.0565 (3) 0.0477 (3) −0.0036 (2) 0.0025 (2) −0.0040 (2)
S1 0.0407 (3) 0.0458 (3) 0.0437 (3) 0.00472 (19) 0.00429 (19) 0.0075 (2)
O1 0.0474 (8) 0.0552 (9) 0.0509 (8) 0.0084 (7) 0.0069 (6) −0.0141 (7)
O2 0.0397 (8) 0.0638 (10) 0.0539 (9) 0.0063 (6) 0.0081 (6) −0.0012 (7)
N1 0.0361 (8) 0.0383 (8) 0.0363 (8) 0.0043 (6) 0.0094 (6) 0.0008 (7)
C1 0.0435 (10) 0.0365 (10) 0.0355 (9) 0.0045 (7) 0.0057 (7) 0.0085 (8)
C2 0.0401 (9) 0.0374 (10) 0.0318 (9) 0.0077 (7) 0.0050 (7) 0.0096 (8)
C3 0.0442 (10) 0.0398 (10) 0.0339 (9) 0.0052 (7) 0.0035 (7) 0.0082 (8)
C4 0.0549 (12) 0.0478 (12) 0.0415 (10) 0.0136 (9) 0.0119 (9) 0.0027 (9)
C5 0.0465 (11) 0.0576 (13) 0.0505 (12) 0.0165 (9) 0.0154 (9) 0.0132 (10)
C6 0.0282 (8) 0.0371 (10) 0.0405 (10) 0.0006 (6) 0.0098 (7) 0.0049 (8)
C7 0.0423 (10) 0.0379 (10) 0.0516 (11) 0.0065 (8) 0.0148 (8) 0.0057 (9)
C8 0.0464 (11) 0.0514 (12) 0.0594 (13) 0.0073 (9) 0.0118 (9) 0.0227 (11)
C9 0.0502 (11) 0.0574 (13) 0.0436 (11) −0.0018 (9) 0.0069 (8) 0.0175 (10)
C10 0.0491 (11) 0.0457 (11) 0.0376 (10) −0.0037 (8) 0.0092 (8) 0.0015 (9)
C11 0.0303 (8) 0.0360 (9) 0.0386 (9) −0.0029 (7) 0.0078 (7) 0.0016 (8)
C12 0.0339 (9) 0.0341 (10) 0.0432 (10) −0.0011 (7) 0.0092 (7) −0.0038 (8)
C13 0.0273 (8) 0.0377 (10) 0.0497 (11) −0.0001 (7) 0.0074 (7) 0.0074 (8)
C14 0.0380 (10) 0.0440 (12) 0.0718 (14) 0.0030 (8) 0.0063 (9) 0.0158 (11)
C15 0.0440 (11) 0.0639 (15) 0.0809 (17) 0.0051 (10) 0.0024 (11) 0.0366 (14)
C16 0.0498 (12) 0.0863 (18) 0.0580 (14) 0.0021 (11) 0.0013 (10) 0.0343 (14)
C17 0.0444 (11) 0.0654 (14) 0.0438 (11) 0.0043 (9) 0.0050 (8) 0.0116 (10)
C18 0.0278 (8) 0.0465 (11) 0.0405 (10) 0.0012 (7) 0.0059 (7) 0.0075 (8)
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Geometric parameters (Å, º)

Cl1—C3 1.7207 (18) C8—H8 0.9300
S1—C5 1.692 (2) C9—C10 1.352 (3)
S1—C2 1.7261 (17) C9—H9 0.9300
O1—C1 1.316 (2) C10—C11 1.427 (3)
O1—H1 0.8200 C10—H10 0.9300
O2—C1 1.199 (2) C11—C12 1.379 (2)
N1—C18 1.346 (2) C12—C13 1.393 (2)
N1—C6 1.354 (2) C12—H12 0.9300
C1—C2 1.478 (3) C13—C14 1.421 (3)
C2—C3 1.368 (3) C13—C18 1.426 (3)
C3—C4 1.408 (3) C14—C15 1.355 (3)
C4—C5 1.353 (3) C14—H14 0.9300
C4—H4 0.9300 C15—C16 1.404 (3)
C5—H5 0.9300 C15—H15 0.9300
C6—C7 1.418 (2) C16—C17 1.357 (3)
C6—C11 1.426 (2) C16—H16 0.9300
C7—C8 1.354 (3) C17—C18 1.426 (3)
C7—H7 0.9300 C17—H17 0.9300
C8—C9 1.405 (3)
C5—S1—C2 92.22 (9) C8—C9—H9 119.6
C1—O1—H1 109.5 C9—C10—C11 120.52 (19)
C18—N1—C6 119.31 (15) C9—C10—H10 119.7
O2—C1—O1 125.12 (18) C11—C10—H10 119.7
O2—C1—C2 124.13 (17) C12—C11—C6 118.43 (16)
O1—C1—C2 110.75 (15) C12—C11—C10 123.13 (17)
C3—C2—C1 130.54 (16) C6—C11—C10 118.44 (17)
C3—C2—S1 109.54 (14) C11—C12—C13 120.66 (17)
C1—C2—S1 119.91 (13) C11—C12—H12 119.7
C2—C3—C4 113.99 (17) C13—C12—H12 119.7
C2—C3—Cl1 124.70 (15) C12—C13—C14 122.99 (18)
C4—C3—Cl1 121.31 (15) C12—C13—C18 117.77 (16)
C5—C4—C3 111.64 (19) C14—C13—C18 119.23 (17)
C5—C4—H4 124.2 C15—C14—C13 120.2 (2)
C3—C4—H4 124.2 C15—C14—H14 119.9
C4—C5—S1 112.61 (15) C13—C14—H14 119.9
C4—C5—H5 123.7 C14—C15—C16 120.6 (2)
S1—C5—H5 123.7 C14—C15—H15 119.7
N1—C6—C7 119.41 (16) C16—C15—H15 119.7
N1—C6—C11 121.65 (16) C17—C16—C15 121.5 (2)
C7—C6—C11 118.94 (16) C17—C16—H16 119.2
C8—C7—C6 120.47 (19) C15—C16—H16 119.2
C8—C7—H7 119.8 C16—C17—C18 119.8 (2)
C6—C7—H7 119.8 C16—C17—H17 120.1
C7—C8—C9 120.91 (19) C18—C17—H17 120.1
C7—C8—H8 119.5 N1—C18—C17 119.21 (18)
C9—C8—H8 119.5 N1—C18—C13 122.18 (16)
C10—C9—C8 120.73 (18) C17—C18—C13 118.61 (17)
C10—C9—H9 119.6
O2—C1—C2—C3 −7.7 (3) C7—C6—C11—C12 179.62 (14)
O1—C1—C2—C3 171.99 (17) N1—C6—C11—C10 179.36 (15)
O2—C1—C2—S1 170.91 (14) C7—C6—C11—C10 −0.4 (2)
O1—C1—C2—S1 −9.4 (2) C9—C10—C11—C12 179.99 (16)
C5—S1—C2—C3 0.03 (13) C9—C10—C11—C6 0.0 (3)
C5—S1—C2—C1 −178.87 (14) C6—C11—C12—C13 0.5 (2)
C1—C2—C3—C4 178.94 (16) C10—C11—C12—C13 −179.48 (15)
S1—C2—C3—C4 0.2 (2) C11—C12—C13—C14 −179.16 (15)
C1—C2—C3—Cl1 −1.6 (3) C11—C12—C13—C18 −0.2 (2)
S1—C2—C3—Cl1 179.68 (10) C12—C13—C14—C15 178.67 (17)
C2—C3—C4—C5 −0.4 (2) C18—C13—C14—C15 −0.2 (3)
Cl1—C3—C4—C5 −179.89 (13) C13—C14—C15—C16 0.9 (3)
C3—C4—C5—S1 0.4 (2) C14—C15—C16—C17 −0.3 (3)
C2—S1—C5—C4 −0.25 (16) C15—C16—C17—C18 −1.1 (3)
C18—N1—C6—C7 −179.75 (14) C6—N1—C18—C17 179.93 (15)
C18—N1—C6—C11 0.5 (2) C6—N1—C18—C13 −0.2 (2)
N1—C6—C7—C8 −179.02 (16) C16—C17—C18—N1 −178.39 (17)
C11—C6—C7—C8 0.7 (2) C16—C17—C18—C13 1.8 (3)
C6—C7—C8—C9 −0.7 (3) C12—C13—C18—N1 0.1 (2)
C7—C8—C9—C10 0.3 (3) C14—C13—C18—N1 179.06 (14)
C8—C9—C10—C11 0.0 (3) C12—C13—C18—C17 179.95 (15)
N1—C6—C11—C12 −0.6 (2) C14—C13—C18—C17 −1.1 (2)
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Hydrogen-bond geometry (Å, º)

Cg7 is the centroid of the thiophene ring.

D—H···A D—H H···A D···A D—H···A
O1—H1···N1 0.82 1.83 2.615 (2) 159
C9—H9···Cg7i 0.93 2.94 3.773 (2) 150
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Symmetry code: (i) −x+1, −y+1, −z+1.

References

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Associated Data

This section collects any data citations, data availability statements, or supplementary materials included in this article.

Supplementary Materials

Crystal structure: contains datablock(s) I. DOI: 10.1107/S2056989016005685/hg5473sup1.cif

e-72-00659-sup1.cif (276.6KB, cif)

Structure factors: contains datablock(s) I. DOI: 10.1107/S2056989016005685/hg5473Isup2.hkl

e-72-00659-Isup2.hkl (280.5KB, hkl)
Click here for additional data file. (5.6KB, cml)

Supporting information file. DOI: 10.1107/S2056989016005685/hg5473Isup3.cml

CCDC reference: 1472507

Additional supporting information: crystallographic information; 3D view; checkCIF report

Articles from Acta Crystallographica Section E: Crystallographic Communications are provided here courtesy of International Union of Crystallography

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