Bis[1-ethyl-6-fluoro-7-(4-methyl­piperazin-1-yl)-4-oxo-1,4-dihydro­quinoline-3-carboxyl­ato-κ2O3,O4]­copper(II)

Qi, W.; Gao, J.; Liang, D.; An, Z.

doi:10.1107/S1600536809003584

Bis[1-ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylato-κ²O³,O⁴]copper(II)

In the title compound, [Cu(C₁₇H₁₉FN₃O₃)₂], the Cu^II atom (site symmetry $\overline{1}$ ) exhibits a slightly distorted CuO₄ square-planar geometry defined by two bidentate O,O′-bonded 1-ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylate (perfloxacinate) anions.

Read article Similar articles

Supporting information

	Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536809003584/hb2904sup1.cif Contains datablocks I, global
	Structure factor file (CIF format) https://doi.org/10.1107/S1600536809003584/hb2904Isup2.hkl Contains datablock I

CCDC reference: 722783

checkCIF report

Key indicators

Single-crystal X-ray study
T = 296 K
Mean (C-C) = 0.003 Å
R factor = 0.033
wR factor = 0.103
Data-to-parameter ratio = 16.1

checkCIF/PLATON results

No syntax errors found



Alert level C
            Value of measurement temperature given =   296.000
            Value of melting point given =     0.000
PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor ....       2.36
PLAT154_ALERT_1_C The su's on the Cell Angles are Equal  (x 10000)       3000 Deg.

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   2 ALERT level C = Check and explain
   0 ALERT level G = General alerts; check

   1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   1 ALERT type 2 Indicator that the structure model may be wrong or deficient
   0 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

Comment top

Pefloxacin (Hpef, C₁₇H₂₀FN₃O₃, 1-ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-quinoline -3-carboxylic acid) is member of a class of quinolones used to treat infections (Mizuki et al., 1996;). The silver(I), manganese(II), cobalt(II) and zinc(II) derivative of the pefloxacinate (pef) anion has been reported (Baenziger et al.,1986; An, Huang & Qi (2007); An, Qi & Huang (2007); Qi et al.(2008); Qi et al., 2008). The title copper(II)-containing complex of pef, (I), is reported here.

The structure of (I) is built up from Cu²⁺ cations (site symmetry 1) anions (pef) ligands, (Fig. 1). It is confirmed that four coordinating O atoms arround Cu^II cation form a square planar configuration. (Table 1).

Related literature top

For the silver, manganese, cobalt and zinc complexes of the pef anion, see: Baenziger et al. (1986); An, Huang & Qi (2007); An, Qi & Huang (2007); Qi et al.(2008), respectively. For background on the medicinal uses of Hpef, see: Mizuki et al. (1996).

Experimental top

A mixture of Cu(CH₃COO)₂.H₂O (0.050 g, 0.25 mmol), Hpef (0.17 g, 0.5 mmol) and water (12 ml) was stirred for 30 min in air. The mixture was then transferred to a 23 ml Teflon-lined hydrothermal bomb. The bomb was kept at 433 K for 72 h under autogenous pressure. Upon cooling, blue prisms of (I) were obtained from the reaction mixture.

Computing details top

Data collection: SMART (Bruker, 1998); cell refinement: SAINT (Bruker, 1998); data reduction: SAINT (Bruker, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

Figures top

Fig. 1. The molecular structure of (I), show the Cu coordination, showing 50% displacement ellipsoids (arbitrary spheres for the H atoms). [Symmetry code: (i) 1–x, 1–y, 1–z.]

Bis[1-ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline- 3-carboxylato-κ²O³,O⁴]copper(II) top

Crystal data top

[Cu(C₁₇H₁₉FN₃O₃)₂]	Z = 1
M_r = 728.24	F(000) = 379
Triclinic, P1	D_x = 1.506 Mg m⁻³
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71073 Å
a = 8.5548 (17) Å	Cell parameters from 7808 reflections
b = 10.253 (2) Å	θ = 3.1–27.5°
c = 10.467 (2) Å	µ = 0.75 mm⁻¹
α = 95.22 (3)°	T = 296 K
β = 109.63 (3)°	Prism, blue
γ = 108.01 (3)°	0.36 × 0.28 × 0.19 mm
V = 802.7 (4) Å³

Data collection top

Bruker SMART CCD area-detector diffractometer	3633 independent reflections
Radiation source: fine-focus sealed tube	3274 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.022
Detector resolution: 0 pixels mm^-1	θ_max = 27.5°, θ_min = 3.1°
ϕ and ω scans	h = −11→10
Absorption correction: multi-scan (SADABS; Bruker, 2001)	k = −10→13
T_min = 0.774, T_max = 0.871	l = −13→13
7880 measured reflections

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.033	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.103	H-atom parameters constrained
S = 1.14	w = 1/[σ²(F_o²) + (0.06P)² + 0.1742P] where P = (F_o² + 2F_c²)/3
3633 reflections	(Δ/σ)_max < 0.001
225 parameters	Δρ_max = 0.35 e Å⁻³
0 restraints	Δρ_min = −0.37 e Å⁻³

Crystal data top

[Cu(C₁₇H₁₉FN₃O₃)₂]	γ = 108.01 (3)°
M_r = 728.24	V = 802.7 (4) Å³
Triclinic, P1	Z = 1
a = 8.5548 (17) Å	Mo Kα radiation
b = 10.253 (2) Å	µ = 0.75 mm⁻¹
c = 10.467 (2) Å	T = 296 K
α = 95.22 (3)°	0.36 × 0.28 × 0.19 mm
β = 109.63 (3)°

Data collection top

Bruker SMART CCD area-detector diffractometer	3633 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2001)	3274 reflections with I > 2σ(I)
T_min = 0.774, T_max = 0.871	R_int = 0.022
7880 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.033	0 restraints
wR(F²) = 0.103	H-atom parameters constrained
S = 1.14	Δρ_max = 0.35 e Å⁻³
3633 reflections	Δρ_min = −0.37 e Å⁻³
225 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.

Refinement. Refinement of F² against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F², conventional R-factors R are based on F, with F set to zero for negative F². The threshold expression of F² > σ(F²) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F² are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

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

	x	y	z	U_iso*/U_eq
Cu1	0.5000	0.5000	0.5000	0.02371 (11)
F1	0.82563 (18)	0.16415 (13)	0.12581 (17)	0.0524 (4)
O1	0.59169 (18)	0.69304 (14)	0.50180 (16)	0.0337 (3)
O2	0.7906 (2)	0.89436 (16)	0.5126 (2)	0.0579 (5)
O3	0.63511 (17)	0.45479 (13)	0.39993 (15)	0.0302 (3)
N1	1.09849 (19)	0.72064 (15)	0.39047 (16)	0.0239 (3)
N2	1.1346 (2)	0.33064 (16)	0.10980 (17)	0.0291 (3)
N3	1.3578 (2)	0.24538 (19)	−0.00270 (19)	0.0353 (4)
C1	0.7358 (3)	0.76677 (19)	0.4892 (2)	0.0294 (4)
C2	0.8370 (2)	0.69045 (18)	0.44045 (19)	0.0244 (4)
C3	0.7735 (2)	0.54329 (18)	0.39289 (18)	0.0231 (3)
C4	0.8738 (2)	0.49016 (18)	0.32802 (19)	0.0233 (3)
C5	0.8070 (2)	0.34754 (19)	0.2611 (2)	0.0297 (4)
H5A	0.7014	0.2864	0.2617	0.036*
C6	0.8976 (3)	0.30001 (19)	0.1959 (2)	0.0315 (4)
C7	1.0598 (2)	0.38636 (19)	0.1906 (2)	0.0267 (4)
C8	1.1264 (2)	0.52630 (19)	0.2581 (2)	0.0258 (4)
H8A	1.2336	0.5861	0.2587	0.031*
C9	1.0346 (2)	0.57967 (18)	0.32596 (18)	0.0227 (3)
C10	0.9982 (2)	0.77176 (18)	0.43938 (19)	0.0254 (4)
H10A	1.0400	0.8680	0.4748	0.031*
C11	1.2746 (2)	0.81963 (19)	0.4025 (2)	0.0307 (4)
H11A	1.3593	0.7721	0.4229	0.037*
H11B	1.3171	0.8985	0.4797	0.037*
C12	1.2671 (3)	0.8743 (2)	0.2716 (3)	0.0470 (6)
H12A	1.2253	0.7967	0.1948	0.071*
H12B	1.3839	0.9358	0.2840	0.071*
H12C	1.1873	0.9249	0.2530	0.071*
C13	1.2615 (3)	0.4313 (2)	0.0678 (2)	0.0326 (4)
H13A	1.3746	0.4760	0.1459	0.039*
H13B	1.2165	0.5036	0.0366	0.039*
C14	1.2866 (3)	0.3524 (2)	−0.0493 (2)	0.0333 (4)
H14A	1.1732	0.3084	−0.1272	0.040*
H14B	1.3677	0.4179	−0.0803	0.040*
C15	1.2292 (3)	0.1448 (2)	0.0361 (2)	0.0352 (4)
H15A	1.2732	0.0716	0.0657	0.042*
H15B	1.1178	0.1013	−0.0439	0.042*
C16	1.1970 (3)	0.2168 (2)	0.1528 (2)	0.0332 (4)
H16A	1.1085	0.1490	0.1757	0.040*
H16B	1.3065	0.2551	0.2349	0.040*
C17	1.3936 (4)	0.1748 (3)	−0.1120 (3)	0.0563 (7)
H17A	1.4481	0.1096	−0.0768	0.084*
H17B	1.4724	0.2435	−0.1407	0.084*
H17C	1.2838	0.1252	−0.1900	0.084*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Cu1	0.02365 (17)	0.02145 (17)	0.03097 (19)	0.00834 (12)	0.01668 (13)	0.00415 (12)
F1	0.0481 (7)	0.0230 (6)	0.0834 (10)	−0.0009 (5)	0.0416 (7)	−0.0160 (6)
O1	0.0325 (7)	0.0262 (7)	0.0559 (9)	0.0138 (5)	0.0299 (7)	0.0110 (6)
O2	0.0654 (11)	0.0217 (7)	0.1127 (16)	0.0147 (7)	0.0680 (12)	0.0092 (9)
O3	0.0283 (6)	0.0214 (6)	0.0445 (8)	0.0039 (5)	0.0246 (6)	0.0008 (6)
N1	0.0220 (7)	0.0178 (7)	0.0334 (8)	0.0060 (5)	0.0139 (6)	0.0034 (6)
N2	0.0363 (8)	0.0222 (8)	0.0393 (9)	0.0123 (6)	0.0254 (7)	0.0066 (7)
N3	0.0379 (9)	0.0391 (10)	0.0392 (10)	0.0191 (7)	0.0234 (8)	0.0049 (8)
C1	0.0347 (9)	0.0217 (9)	0.0419 (11)	0.0126 (7)	0.0242 (8)	0.0078 (8)
C2	0.0278 (8)	0.0210 (8)	0.0297 (9)	0.0104 (7)	0.0162 (7)	0.0049 (7)
C3	0.0244 (8)	0.0214 (8)	0.0263 (9)	0.0083 (6)	0.0131 (7)	0.0053 (7)
C4	0.0248 (8)	0.0192 (8)	0.0292 (9)	0.0077 (6)	0.0147 (7)	0.0048 (7)
C5	0.0291 (9)	0.0207 (9)	0.0405 (11)	0.0047 (7)	0.0200 (8)	0.0020 (8)
C6	0.0329 (9)	0.0179 (8)	0.0440 (11)	0.0041 (7)	0.0218 (8)	−0.0016 (8)
C7	0.0295 (9)	0.0224 (9)	0.0329 (9)	0.0102 (7)	0.0177 (8)	0.0037 (7)
C8	0.0247 (8)	0.0219 (8)	0.0345 (9)	0.0083 (6)	0.0162 (7)	0.0056 (7)
C9	0.0246 (8)	0.0185 (8)	0.0271 (9)	0.0088 (6)	0.0119 (7)	0.0041 (7)
C10	0.0287 (8)	0.0179 (8)	0.0319 (9)	0.0086 (7)	0.0148 (7)	0.0027 (7)
C11	0.0219 (8)	0.0205 (8)	0.0489 (12)	0.0038 (6)	0.0178 (8)	0.0007 (8)
C12	0.0486 (12)	0.0361 (12)	0.0679 (16)	0.0106 (10)	0.0388 (12)	0.0182 (11)
C13	0.0386 (10)	0.0251 (9)	0.0428 (11)	0.0110 (8)	0.0265 (9)	0.0077 (8)
C14	0.0374 (10)	0.0336 (10)	0.0347 (10)	0.0115 (8)	0.0220 (8)	0.0069 (8)
C15	0.0459 (11)	0.0307 (10)	0.0407 (11)	0.0203 (9)	0.0249 (9)	0.0079 (8)
C16	0.0454 (11)	0.0308 (10)	0.0370 (11)	0.0198 (8)	0.0258 (9)	0.0100 (8)
C17	0.0764 (18)	0.0512 (15)	0.0686 (17)	0.0307 (13)	0.0547 (15)	0.0096 (13)

Geometric parameters (Å, º) top

Cu1—O1ⁱ	1.8858 (15)	C6—C7	1.419 (3)
Cu1—O1	1.8858 (15)	C7—C8	1.387 (3)
Cu1—O3	1.9247 (13)	C8—C9	1.411 (2)
Cu1—O3ⁱ	1.9247 (13)	C8—H8A	0.9300
F1—C6	1.356 (2)	C10—H10A	0.9300
O1—C1	1.288 (2)	C11—C12	1.517 (3)
O2—C1	1.215 (2)	C11—H11A	0.9700
O3—C3	1.279 (2)	C11—H11B	0.9700
N1—C10	1.341 (2)	C12—H12A	0.9600
N1—C9	1.389 (2)	C12—H12B	0.9600
N1—C11	1.490 (2)	C12—H12C	0.9600
N2—C7	1.397 (2)	C13—C14	1.517 (3)
N2—C13	1.465 (2)	C13—H13A	0.9700
N2—C16	1.473 (2)	C13—H13B	0.9700
N3—C15	1.454 (3)	C14—H14A	0.9700
N3—C14	1.458 (3)	C14—H14B	0.9700
N3—C17	1.465 (3)	C15—C16	1.516 (3)
C1—C2	1.505 (2)	C15—H15A	0.9700
C2—C10	1.378 (2)	C15—H15B	0.9700
C2—C3	1.412 (2)	C16—H16A	0.9700
C3—C4	1.451 (2)	C16—H16B	0.9700
C4—C9	1.406 (2)	C17—H17A	0.9600
C4—C5	1.408 (3)	C17—H17B	0.9600
C5—C6	1.354 (3)	C17—H17C	0.9600
C5—H5A	0.9300

O1ⁱ—Cu1—O1	180.0	N1—C10—H10A	118.0
O1ⁱ—Cu1—O3	87.35 (6)	C2—C10—H10A	118.0
O1—Cu1—O3	92.65 (6)	N1—C11—C12	112.76 (17)
O1ⁱ—Cu1—O3ⁱ	92.65 (6)	N1—C11—H11A	109.0
O1—Cu1—O3ⁱ	87.35 (6)	C12—C11—H11A	109.0
O3—Cu1—O3ⁱ	180.0	N1—C11—H11B	109.0
C1—O1—Cu1	130.33 (12)	C12—C11—H11B	109.0
C3—O3—Cu1	124.62 (12)	H11A—C11—H11B	107.8
C10—N1—C9	119.95 (15)	C11—C12—H12A	109.5
C10—N1—C11	118.31 (15)	C11—C12—H12B	109.5
C9—N1—C11	121.70 (14)	H12A—C12—H12B	109.5
C7—N2—C13	116.83 (15)	C11—C12—H12C	109.5
C7—N2—C16	117.25 (15)	H12A—C12—H12C	109.5
C13—N2—C16	111.04 (15)	H12B—C12—H12C	109.5
C15—N3—C14	108.25 (16)	N2—C13—C14	108.39 (16)
C15—N3—C17	110.58 (18)	N2—C13—H13A	110.0
C14—N3—C17	110.99 (18)	C14—C13—H13A	110.0
O2—C1—O1	122.66 (17)	N2—C13—H13B	110.0
O2—C1—C2	119.20 (17)	C14—C13—H13B	110.0
O1—C1—C2	118.13 (16)	H13A—C13—H13B	108.4
C10—C2—C3	119.32 (16)	N3—C14—C13	110.51 (17)
C10—C2—C1	116.81 (15)	N3—C14—H14A	109.5
C3—C2—C1	123.84 (16)	C13—C14—H14A	109.5
O3—C3—C2	125.72 (16)	N3—C14—H14B	109.5
O3—C3—C4	118.07 (15)	C13—C14—H14B	109.5
C2—C3—C4	116.19 (15)	H14A—C14—H14B	108.1
C9—C4—C5	118.77 (16)	N3—C15—C16	110.62 (17)
C9—C4—C3	121.23 (16)	N3—C15—H15A	109.5
C5—C4—C3	119.96 (16)	C16—C15—H15A	109.5
C6—C5—C4	119.63 (17)	N3—C15—H15B	109.5
C6—C5—H5A	120.2	C16—C15—H15B	109.5
C4—C5—H5A	120.2	H15A—C15—H15B	108.1
C5—C6—F1	118.45 (17)	N2—C16—C15	109.86 (16)
C5—C6—C7	123.62 (17)	N2—C16—H16A	109.7
F1—C6—C7	117.85 (16)	C15—C16—H16A	109.7
C8—C7—N2	123.85 (16)	N2—C16—H16B	109.7
C8—C7—C6	116.62 (16)	C15—C16—H16B	109.7
N2—C7—C6	119.30 (16)	H16A—C16—H16B	108.2
C7—C8—C9	121.24 (16)	N3—C17—H17A	109.5
C7—C8—H8A	119.4	N3—C17—H17B	109.5
C9—C8—H8A	119.4	H17A—C17—H17B	109.5
N1—C9—C4	118.52 (15)	N3—C17—H17C	109.5
N1—C9—C8	121.36 (15)	H17A—C17—H17C	109.5
C4—C9—C8	120.11 (16)	H17B—C17—H17C	109.5
N1—C10—C2	124.01 (16)

O3—Cu1—O1—C1	−22.51 (19)	C5—C6—C7—N2	−174.06 (19)
O3ⁱ—Cu1—O1—C1	157.49 (19)	F1—C6—C7—N2	2.6 (3)
O1ⁱ—Cu1—O3—C3	−160.14 (16)	N2—C7—C8—C9	173.18 (17)
O1—Cu1—O3—C3	19.86 (16)	C6—C7—C8—C9	−1.2 (3)
Cu1—O1—C1—O2	−168.97 (18)	C10—N1—C9—C4	−7.3 (3)
Cu1—O1—C1—C2	12.5 (3)	C11—N1—C9—C4	175.07 (17)
O2—C1—C2—C10	6.8 (3)	C10—N1—C9—C8	171.97 (17)
O1—C1—C2—C10	−174.60 (18)	C11—N1—C9—C8	−5.6 (3)
O2—C1—C2—C3	−171.3 (2)	C5—C4—C9—N1	179.12 (17)
O1—C1—C2—C3	7.3 (3)	C3—C4—C9—N1	1.4 (3)
Cu1—O3—C3—C2	−8.9 (3)	C5—C4—C9—C8	−0.2 (3)
Cu1—O3—C3—C4	172.47 (12)	C3—C4—C9—C8	−177.85 (16)
C10—C2—C3—O3	173.24 (17)	C7—C8—C9—N1	−178.24 (17)
C1—C2—C3—O3	−8.7 (3)	C7—C8—C9—C4	1.0 (3)
C10—C2—C3—C4	−8.1 (3)	C9—N1—C10—C2	5.5 (3)
C1—C2—C3—C4	169.88 (17)	C11—N1—C10—C2	−176.84 (18)
O3—C3—C4—C9	−175.10 (16)	C3—C2—C10—N1	2.7 (3)
C2—C3—C4—C9	6.2 (3)	C1—C2—C10—N1	−175.49 (17)
O3—C3—C4—C5	7.3 (3)	C10—N1—C11—C12	−95.8 (2)
C2—C3—C4—C5	−171.48 (17)	C9—N1—C11—C12	81.9 (2)
C9—C4—C5—C6	−0.4 (3)	C7—N2—C13—C14	−164.32 (17)
C3—C4—C5—C6	177.27 (18)	C16—N2—C13—C14	57.6 (2)
C4—C5—C6—F1	−176.44 (19)	C15—N3—C14—C13	62.2 (2)
C4—C5—C6—C7	0.2 (3)	C17—N3—C14—C13	−176.26 (18)
C13—N2—C7—C8	−15.2 (3)	N2—C13—C14—N3	−60.8 (2)
C16—N2—C7—C8	120.3 (2)	C14—N3—C15—C16	−60.3 (2)
C13—N2—C7—C6	159.03 (19)	C17—N3—C15—C16	178.0 (2)
C16—N2—C7—C6	−65.5 (2)	C7—N2—C16—C15	165.57 (17)
C5—C6—C7—C8	0.6 (3)	C13—N2—C16—C15	−56.5 (2)
F1—C6—C7—C8	177.28 (18)	N3—C15—C16—N2	57.7 (2)

Symmetry code: (i) −x+1, −y+1, −z+1.

Experimental details

Crystal data
Chemical formula	[Cu(C₁₇H₁₉FN₃O₃)₂]
M_r	728.24
Crystal system, space group	Triclinic, P1
Temperature (K)	296
a, b, c (Å)	8.5548 (17), 10.253 (2), 10.467 (2)
α, β, γ (°)	95.22 (3), 109.63 (3), 108.01 (3)
V (Å³)	802.7 (4)
Z	1
Radiation type	Mo Kα
µ (mm⁻¹)	0.75
Crystal size (mm)	0.36 × 0.28 × 0.19

Data collection
Diffractometer	Bruker SMART CCD area-detector diffractometer
Absorption correction	Multi-scan (SADABS; Bruker, 2001)
T_min, T_max	0.774, 0.871
No. of measured, independent and observed [I > 2σ(I)] reflections	7880, 3633, 3274
R_int	0.022
(sin θ/λ)_max (Å⁻¹)	0.649

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.033, 0.103, 1.14
No. of reflections	3633
No. of parameters	225
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.35, −0.37

Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Selected bond lengths (Å) top

Cu1—O1

1.8858 (15)

Cu1—O3

1.9247 (13)

Format		BIBTeX
		EndNote
		RefMan
		Refer
		Medline
		CIF
		SGML
		Text
		Plain Text

Format		BIBTeX
		EndNote
		RefMan
		Refer
		Medline
		CIF
		SGML
		Text
		Plain Text

Search IUCr Journals		doi		Advanced search
Author		volume	page

Bis[1-ethyl-6-fluoro-7-(4-methyl­piperazin-1-yl)-4-oxo-1,4-dihydro­quinoline-3-carboxyl­ato-κ2O3,O4]­copper(II)

Supporting information

Key indicators

checkCIF/PLATON results

Bis[1-ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylato-κ²O³,O⁴]copper(II)