Crystal structure of 2-hy­droxy-2-(2-oxo­cyclo­hept­yl)-2,3-di­hydro-1H-indene-1,3-dione

Ahamed, P.K.; Srinivasan, N.; Ranjith Kumar, R.; Krishnakumar, R.V.

doi:10.1107/S2056989015016126

organic compounds

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ISSN: 2056-9890

Volume 71| Part 10| October 2015| Pages o715-o716

doi:10.1107/S2056989015016126

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Crystal structure of 2-hydroxy-2-(2-oxocycloheptyl)-2,3-dihydro-1H-indene-1,3-dione

P. Kaleel Ahamed,^a N. Srinivasan,^b ^* R. Ranjith Kumar ^c and R. V. Krishnakumar ^b

^aDepartment of Physics, Dr. Zakir Husain College, Ilayankudi, Sivagangai District 625 009, India, ^bDepartment of Physics, Thiagarajar College, Madurai 625 009, India, and ^cSchool of Chemistry, Madurai Kamaraj University, Madurai 625 021, India
^*Correspondence e-mail: vasan692000@yahoo.co.in

Edited by D.-J. Xu, Zhejiang University (Yuquan Campus), China (Received 23 August 2015; accepted 28 August 2015; online 12 September 2015)

In the title compound, C₁₆H₁₆O₄, the five-membered ring of the indene-1,3-dione unit adopts a twist conformation, whereas the seven-membered ring adopts a twist–chair conformation. In the crystal, molecules are linked by O—H⋯O hydrogen bonds, weak C—H⋯O hydrogen bonds and π–π stacking [centroid-to-centroid distance = 3.7373 (8) Å] into a three-dimensional supramolecular architecture.

Keywords: crystal structure; indene-1,3-dione; hydrogen bonding; π–π stacking.

CCDC reference: 1421141

1. Related literature

For the background and potential applications of the title compound, see: Andreu et al. (2009 ); Fun et al. (2009 ); Ghalib et al. (2011 ); Uk Kim et al. (2004 ); Penthala et al. (2009 ); Sundar et al. (2010 ); Yao et al. (2006a ,b ).

2. Experimental

2.1. Crystal data

C₁₆H₁₆O₄
M_r = 272.29
Orthorhombic, P b c a
a = 7.4131 (5) Å
b = 18.8596 (13) Å
c = 19.0166 (13) Å
V = 2658.7 (3) Å³
Z = 8
Mo Kα radiation
μ = 0.10 mm⁻¹
T = 294 K
0.30 × 0.23 × 0.18 mm

2.2. Data collection

Bruker SMART APEXII CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2009 ) T_min = 0.978, T_max = 0.986
28734 measured reflections
3191 independent reflections
2849 reflections with I > 2σ(I)
R_int = 0.020

2.3. Refinement

R[F² > 2σ(F²)] = 0.045
wR(F²) = 0.119
S = 1.03
3191 reflections
185 parameters
H atoms treated by a mixture of independent and constrained refinement
Δρ_max = 0.33 e Å⁻³
Δρ_min = −0.20 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2⋯O4ⁱ	0.80 (2)	1.99 (2)	2.7707 (13)	163 (2)
C4—H4⋯O1ⁱⁱ	0.93	2.48	3.2758 (17)	144
C15—H15B⋯O3ⁱⁱⁱ	0.97	2.47	3.3998 (19)	160
Symmetry codes: (i) $[x-{\script{1\over 2}}, -y+{\script{1\over 2}}, -z+1]$ ; (ii) $[x-{\script{1\over 2}}, y, -z+{\script{1\over 2}}]$ ; (iii) -x+2, -y, -z+1.

Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS2013 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015 ); molecular graphics: PLATON (Spek, 2009 ); software used to prepare material for publication: publCIF (Westrip, 2010 ).

Supporting information

CCDC reference: 1421141

Crystal structure: contains datablocks I, global. DOI: 10.1107/S2056989015016126/xu5867sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S2056989015016126/xu5867Isup2.hkl

Supporting information file. DOI: 10.1107/S2056989015016126/xu5867Isup3.cdx

Supporting information file. DOI: 10.1107/S2056989015016126/xu5867Isup4.cml

checkCIF report

Comment top

In the continuation of studies of ninhydrin reactions viz. 2-acetonyl-2-hydroxyindan-1,3-dione (Fun et al., 2009), rac-2-(2-amino-4-pxp-4,5-dihydro-1,3-thiazol-5-yl)-2- hydroxyindane-1,3-dione (Penthala et al., 2009), rac-2-hydroxy-2-(2-oxocyclopentyl)-1H-indene- 1,3(2H)-dione (Sundar et al., 2010), 2-hydroxy-2- (3-oxobutan-2-yl)indan-1,3-dione, we have undertaken the structural analysis of the title compound, the indene-1,3(2H)-dione moiety belongs to an important class of luminescent materials which is used as a strong electron acceptor in organic light-emitting diodes (Yao et al., 2006a,b; Andreu et al., 2009; Kim et al., 2004). The derivatives of indandione is a promising materials in the field of photonics. It is also used in the first stage of forensic identification of latent fingerprints.

The measure of angle strain is 5.65° which is comparable with calculated crystal structure data value of 6.5°.

The title compound 2-hydroxy-2-(2-oxocycloheptyl)-2,3-dihydro-1H-indene-1,3-dione crystallizes in orthorhombic space group Pbca. The five-membered ring adopts twist conformation on C8—C9 with Q = 0.1502 Å and φ = 302.24°. In the crystal structure, molecules are linked by intermolecular O—H···O and C—H···O hydrogen bonds. The symmetry related six-membered spiro rings show π-π interactions with distance of 3.7373 (8) Å (Fig. 2).

The O—H···O hydrogen bonding form a infinite linear hydrogen bonding chain C(11) extending along a axis.

The mean plane of oxocycloheptyl and fused ring of indene make an angle of 61.945 °. The substituent oxygen O1 deviates from the mean plane of oxocycloheptyl ring by -0.9121 Å

Related literature top

For the background and potential applications of the title compound, see: Andreu et al. (2009); Fun et al. (2009); Ghalib et al. (2011); Kim et al. (2004); Penthala et al. (2009); Sundar et al. (2010); Yao et al. (2006a,b).

Experimental top

A mixture of cycloheptanone (1 mmol) and ninhydrin (1 mmol) was taken in a boiling tube and was subjected to microwave irradiation for 5 minutes. The progress of reaction was monitored by thin layer chromatography after each one minute of irradiation. After completion of reaction as evident from TLC, the residue was purified by column chromatography by using petroleum ether and ethyl acetate 65:35 v/v mixture as an eluent to afford the product. The product was recrystallized from ethyl acetate.

Computing details top

Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS2013 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: publCIF (Westrip, 2010).

Figures top

	Fig. 1. The molecular structure of (I), with atom labels and 50% probability displacement ellipsoids for non-H atoms.
	Fig. 2. A view of the molecular aggregation down the a axis. Ring systems and H atoms that are not involved in hydrogen bonding have been omitted for clarity.

2-Hydroxy-2-(2-oxocycloheptyl)-2,3-dihydro-1H-indene-1,3-dione top

Crystal data top

C₁₆H₁₆O₄	D_x = 1.361 Mg m⁻³ D_m = 1.35 Mg m⁻³ D_m measured by floatation method
M_r = 272.29	Mo Kα radiation, λ = 0.71073 Å
Orthorhombic, Pbca	Cell parameters from 7469 reflections
a = 7.4131 (5) Å	θ = 2.4–27.8°
b = 18.8596 (13) Å	µ = 0.10 mm⁻¹
c = 19.0166 (13) Å	T = 294 K
V = 2658.7 (3) Å³	Needle, colourless
Z = 8	0.30 × 0.23 × 0.18 mm
F(000) = 1152

Data collection top

Bruker SMART APEXII CCD diffractometer	2849 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	R_int = 0.020
φ and ω scans	θ_max = 28.0°, θ_min = 2.2°
Absorption correction: multi-scan (SADABS; Bruker, 2009)	h = −9→9
T_min = 0.978, T_max = 0.986	k = −24→24
28734 measured reflections	l = −24→25
3191 independent reflections

Refinement top

Refinement on F²	0 restraints
Least-squares matrix: full	Hydrogen site location: inferred from neighbouring sites
R[F² > 2σ(F²)] = 0.045	H atoms treated by a mixture of independent and constrained refinement
wR(F²) = 0.119	w = 1/[σ²(F_o²) + (0.0599P)² + 0.7812P] where P = (F_o² + 2F_c²)/3
S = 1.03	(Δ/σ)_max < 0.001
3191 reflections	Δρ_max = 0.33 e Å⁻³
185 parameters	Δρ_min = −0.20 e Å⁻³

Crystal data top

C₁₆H₁₆O₄	V = 2658.7 (3) Å³
M_r = 272.29	Z = 8
Orthorhombic, Pbca	Mo Kα radiation
a = 7.4131 (5) Å	µ = 0.10 mm⁻¹
b = 18.8596 (13) Å	T = 294 K
c = 19.0166 (13) Å	0.30 × 0.23 × 0.18 mm

Data collection top

Bruker SMART APEXII CCD diffractometer	3191 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2009)	2849 reflections with I > 2σ(I)
T_min = 0.978, T_max = 0.986	R_int = 0.020
28734 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.045	0 restraints
wR(F²) = 0.119	H atoms treated by a mixture of independent and constrained refinement
S = 1.03	Δρ_max = 0.33 e Å⁻³
3191 reflections	Δρ_min = −0.20 e Å⁻³
185 parameters

Special details top

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

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

	x	y	z	U_iso*/U_eq
O1	1.03172 (15)	0.08184 (7)	0.44453 (5)	0.0593 (3)
O2	0.56285 (14)	0.19613 (6)	0.45415 (5)	0.0525 (3)
O3	0.60520 (16)	0.04223 (5)	0.41294 (5)	0.0565 (3)
O4	0.93803 (17)	0.25552 (5)	0.41716 (5)	0.0570 (3)
C1	0.68387 (16)	0.09552 (6)	0.39677 (6)	0.0357 (3)
C2	0.73825 (16)	0.11650 (6)	0.32474 (6)	0.0343 (3)
C3	0.70883 (18)	0.08049 (8)	0.26203 (7)	0.0446 (3)
H3	0.6582	0.0354	0.2617	0.053*
C4	0.75714 (19)	0.11383 (9)	0.20020 (7)	0.0509 (4)
H4	0.7383	0.0908	0.1576	0.061*
C5	0.83328 (19)	0.18099 (9)	0.20053 (6)	0.0487 (3)
H5	0.8608	0.2028	0.1580	0.058*
C6	0.86906 (18)	0.21611 (7)	0.26286 (6)	0.0427 (3)
H6	0.9238	0.2605	0.2631	0.051*
C7	0.82010 (16)	0.18254 (6)	0.32509 (6)	0.0335 (2)
C8	0.84477 (17)	0.20639 (6)	0.39815 (6)	0.0355 (3)
C9	0.72848 (16)	0.15854 (6)	0.44602 (6)	0.0334 (2)
C10	0.81939 (16)	0.14094 (6)	0.51591 (6)	0.0343 (2)
H10	0.8396	0.1855	0.5412	0.041*
C11	0.70788 (19)	0.09172 (7)	0.56410 (7)	0.0434 (3)
H11A	0.5807	0.1009	0.5563	0.052*
H11B	0.7312	0.0429	0.5509	0.052*
C12	0.7486 (3)	0.10069 (9)	0.64220 (7)	0.0589 (4)
H12A	0.7260	0.1497	0.6549	0.071*
H12B	0.6645	0.0716	0.6686	0.071*
C13	0.9388 (3)	0.08166 (10)	0.66515 (8)	0.0679 (5)
H13A	0.9607	0.0323	0.6534	0.081*
H13B	0.9459	0.0860	0.7159	0.081*
C14	1.0880 (2)	0.12630 (9)	0.63284 (8)	0.0594 (4)
H14A	1.1938	0.1232	0.6627	0.071*
H14B	1.0494	0.1754	0.6324	0.071*
C15	1.1415 (2)	0.10527 (8)	0.55851 (8)	0.0547 (4)
H15A	1.2401	0.1358	0.5441	0.066*
H15B	1.1886	0.0573	0.5604	0.066*
C16	1.00134 (17)	0.10759 (6)	0.50196 (7)	0.0380 (3)
H2	0.549 (3)	0.2103 (10)	0.4936 (11)	0.070 (6)*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
O1	0.0519 (6)	0.0860 (8)	0.0399 (5)	0.0216 (5)	0.0051 (4)	−0.0029 (5)
O2	0.0512 (6)	0.0737 (7)	0.0326 (5)	0.0284 (5)	0.0016 (4)	−0.0022 (4)
O3	0.0654 (7)	0.0510 (6)	0.0530 (6)	−0.0195 (5)	−0.0038 (5)	0.0066 (4)
O4	0.0843 (8)	0.0484 (5)	0.0381 (5)	−0.0224 (5)	−0.0097 (5)	−0.0021 (4)
C1	0.0347 (6)	0.0388 (6)	0.0335 (6)	0.0007 (4)	−0.0020 (4)	−0.0002 (4)
C2	0.0325 (5)	0.0405 (6)	0.0298 (5)	0.0033 (4)	−0.0018 (4)	−0.0050 (4)
C3	0.0420 (7)	0.0523 (7)	0.0394 (7)	0.0029 (5)	−0.0053 (5)	−0.0148 (5)
C4	0.0451 (7)	0.0768 (10)	0.0308 (6)	0.0108 (7)	−0.0049 (5)	−0.0160 (6)
C5	0.0429 (7)	0.0771 (9)	0.0261 (6)	0.0113 (6)	0.0019 (5)	0.0035 (6)
C6	0.0418 (6)	0.0535 (7)	0.0327 (6)	0.0011 (5)	0.0009 (5)	0.0058 (5)
C7	0.0340 (5)	0.0403 (6)	0.0261 (5)	0.0030 (4)	−0.0009 (4)	−0.0013 (4)
C8	0.0452 (6)	0.0337 (5)	0.0277 (5)	0.0015 (5)	−0.0028 (4)	−0.0005 (4)
C9	0.0367 (6)	0.0376 (5)	0.0258 (5)	0.0057 (4)	0.0017 (4)	−0.0003 (4)
C10	0.0399 (6)	0.0372 (6)	0.0257 (5)	0.0024 (5)	0.0003 (4)	0.0015 (4)
C11	0.0440 (7)	0.0514 (7)	0.0348 (6)	−0.0021 (5)	0.0044 (5)	0.0083 (5)
C12	0.0780 (11)	0.0668 (9)	0.0319 (6)	−0.0066 (8)	0.0087 (7)	0.0102 (6)
C13	0.0937 (13)	0.0668 (10)	0.0431 (8)	−0.0138 (9)	−0.0193 (8)	0.0195 (7)
C14	0.0743 (10)	0.0544 (8)	0.0494 (8)	−0.0069 (7)	−0.0244 (7)	0.0063 (6)
C15	0.0475 (8)	0.0568 (8)	0.0597 (9)	0.0069 (6)	−0.0157 (7)	−0.0008 (7)
C16	0.0379 (6)	0.0400 (6)	0.0360 (6)	0.0004 (5)	0.0017 (5)	0.0066 (5)

Geometric parameters (Å, º) top

O1—C16	1.2163 (16)	C9—C10	1.5267 (15)
O2—C9	1.4262 (14)	C10—C16	1.5118 (17)
O2—H2	0.80 (2)	C10—C11	1.5442 (16)
O3—C1	1.2018 (15)	C10—H10	0.9800
O4—C8	1.2113 (15)	C11—C12	1.5249 (18)
C1—C2	1.4818 (16)	C11—H11A	0.9700
C1—C9	1.5489 (16)	C11—H11B	0.9700
C2—C7	1.3856 (17)	C12—C13	1.519 (3)
C2—C3	1.3894 (16)	C12—H12A	0.9700
C3—C4	1.381 (2)	C12—H12B	0.9700
C3—H3	0.9300	C13—C14	1.520 (3)
C4—C5	1.387 (2)	C13—H13A	0.9700
C4—H4	0.9300	C13—H13B	0.9700
C5—C6	1.3833 (18)	C14—C15	1.521 (2)
C5—H5	0.9300	C14—H14A	0.9700
C6—C7	1.3904 (16)	C14—H14B	0.9700
C6—H6	0.9300	C15—C16	1.4961 (19)
C7—C8	1.4718 (15)	C15—H15A	0.9700
C8—C9	1.5448 (16)	C15—H15B	0.9700

C9—O2—H2	112.0 (14)	C9—C10—H10	107.9
O3—C1—C2	126.28 (11)	C11—C10—H10	107.9
O3—C1—C9	126.20 (11)	C12—C11—C10	113.91 (12)
C2—C1—C9	107.22 (9)	C12—C11—H11A	108.8
C7—C2—C3	120.82 (11)	C10—C11—H11A	108.8
C7—C2—C1	110.77 (9)	C12—C11—H11B	108.8
C3—C2—C1	128.33 (12)	C10—C11—H11B	108.8
C4—C3—C2	117.88 (13)	H11A—C11—H11B	107.7
C4—C3—H3	121.1	C13—C12—C11	115.93 (14)
C2—C3—H3	121.1	C13—C12—H12A	108.3
C3—C4—C5	121.17 (12)	C11—C12—H12A	108.3
C3—C4—H4	119.4	C13—C12—H12B	108.3
C5—C4—H4	119.4	C11—C12—H12B	108.3
C6—C5—C4	121.29 (12)	H12A—C12—H12B	107.4
C6—C5—H5	119.4	C12—C13—C14	115.37 (13)
C4—C5—H5	119.4	C12—C13—H13A	108.4
C5—C6—C7	117.47 (13)	C14—C13—H13A	108.4
C5—C6—H6	121.3	C12—C13—H13B	108.4
C7—C6—H6	121.3	C14—C13—H13B	108.4
C2—C7—C6	121.30 (11)	H13A—C13—H13B	107.5
C2—C7—C8	109.50 (10)	C13—C14—C15	114.90 (14)
C6—C7—C8	129.20 (11)	C13—C14—H14A	108.5
O4—C8—C7	125.90 (11)	C15—C14—H14A	108.5
O4—C8—C9	126.13 (10)	C13—C14—H14B	108.5
C7—C8—C9	107.96 (9)	C15—C14—H14B	108.5
O2—C9—C10	113.19 (9)	H14A—C14—H14B	107.5
O2—C9—C8	104.70 (9)	C16—C15—C14	118.64 (13)
C10—C9—C8	113.18 (10)	C16—C15—H15A	107.7
O2—C9—C1	105.26 (10)	C14—C15—H15A	107.7
C10—C9—C1	116.99 (9)	C16—C15—H15B	107.7
C8—C9—C1	102.19 (9)	C14—C15—H15B	107.7
C16—C10—C9	109.36 (9)	H15A—C15—H15B	107.1
C16—C10—C11	109.37 (9)	O1—C16—C15	120.34 (12)
C9—C10—C11	114.26 (10)	O1—C16—C10	119.27 (11)
C16—C10—H10	107.9	C15—C16—C10	120.38 (11)

O3—C1—C2—C7	177.60 (13)	O3—C1—C9—O2	−76.24 (15)
C9—C1—C2—C7	3.64 (13)	C2—C1—C9—O2	97.72 (11)
O3—C1—C2—C3	0.9 (2)	O3—C1—C9—C10	50.41 (17)
C9—C1—C2—C3	−173.10 (12)	C2—C1—C9—C10	−135.63 (10)
C7—C2—C3—C4	−2.52 (19)	O3—C1—C9—C8	174.60 (13)
C1—C2—C3—C4	173.93 (12)	C2—C1—C9—C8	−11.44 (12)
C2—C3—C4—C5	0.3 (2)	O2—C9—C10—C16	−174.64 (10)
C3—C4—C5—C6	2.1 (2)	C8—C9—C10—C16	−55.70 (12)
C4—C5—C6—C7	−2.2 (2)	C1—C9—C10—C16	62.72 (13)
C3—C2—C7—C6	2.51 (18)	O2—C9—C10—C11	62.41 (14)
C1—C2—C7—C6	−174.52 (11)	C8—C9—C10—C11	−178.65 (10)
C3—C2—C7—C8	−176.47 (11)	C1—C9—C10—C11	−60.24 (13)
C1—C2—C7—C8	6.50 (14)	C16—C10—C11—C12	83.76 (14)
C5—C6—C7—C2	−0.13 (18)	C9—C10—C11—C12	−153.30 (12)
C5—C6—C7—C8	178.63 (12)	C10—C11—C12—C13	−63.91 (18)
C2—C7—C8—O4	166.80 (13)	C11—C12—C13—C14	62.5 (2)
C6—C7—C8—O4	−12.1 (2)	C12—C13—C14—C15	−79.9 (2)
C2—C7—C8—C9	−14.11 (13)	C13—C14—C15—C16	59.78 (19)
C6—C7—C8—C9	167.02 (12)	C14—C15—C16—O1	−169.58 (14)
O4—C8—C9—O2	84.79 (15)	C14—C15—C16—C10	9.5 (2)
C7—C8—C9—O2	−94.30 (11)	C9—C10—C16—O1	−19.61 (16)
O4—C8—C9—C10	−38.94 (17)	C11—C10—C16—O1	106.21 (14)
C7—C8—C9—C10	141.98 (10)	C9—C10—C16—C15	161.33 (12)
O4—C8—C9—C1	−165.63 (13)	C11—C10—C16—C15	−72.85 (15)
C7—C8—C9—C1	15.28 (12)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O2—H2···O4ⁱ	0.80 (2)	1.99 (2)	2.7707 (13)	163 (2)
C4—H4···O1ⁱⁱ	0.93	2.48	3.2758 (17)	144
C15—H15B···O3ⁱⁱⁱ	0.97	2.47	3.3998 (19)	160

Symmetry codes: (i) x−1/2, −y+1/2, −z+1; (ii) x−1/2, y, −z+1/2; (iii) −x+2, −y, −z+1.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O2—H2···O4ⁱ	0.80 (2)	1.99 (2)	2.7707 (13)	163 (2)
C4—H4···O1ⁱⁱ	0.93	2.48	3.2758 (17)	143.9
C15—H15B···O3ⁱⁱⁱ	0.97	2.47	3.3998 (19)	159.6

Symmetry codes: (i) x−1/2, −y+1/2, −z+1; (ii) x−1/2, y, −z+1/2; (iii) −x+2, −y, −z+1.

Acknowledgements

The authors thank the Sophisticated Analytical Instrumentation Facility (SAIF), Indian Institute of Technology, Chennai, for the X-ray intensity data collection.

References

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Volume 71| Part 10| October 2015| Pages o715-o716

doi:10.1107/S2056989015016126

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organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Crystal structure of 2-hy­dr­oxy-2-(2-oxo­cyclo­hept­yl)-2,3-di­hydro-1H-indene-1,3-dione

1. Related literature

2. Experimental

2.1. Crystal data

2.2. Data collection

2.3. Refinement

Supporting information

Acknowledgements

References

organic compounds

Crystal structure of 2-hydroxy-2-(2-oxocycloheptyl)-2,3-dihydro-1H-indene-1,3-dione