Crystal structure of bis­{S-hexyl 3-[4-(di­methyl­amino)­benzyl­idene]di­thio­carbazato-κ2N3,S}copper(II)

Zangrando, E.; Begum, M.S.; Miyatake, R.; Sheikh, M.C.; Hossain, M.M.

doi:10.1107/S2056989015009342

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Volume 71| Part 6| June 2015| Pages 706-708

doi:10.1107/S2056989015009342

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Crystal structure of bis{S-hexyl 3-[4-(dimethylamino)benzylidene]dithiocarbazato-κ²N³,S}copper(II)

E. Zangrando,^a M. S. Begum,^b R. Miyatake,^c M. C. Sheikh ^d and Md. M. Hossain ^b ^*

^aDepartment of Chemical and Pharmaceutical Sciences, via Giorgieri 1, 34127 Trieste, Italy, ^bDepartment of Chemistry, Rajshahi University, Rajshahi-6205, Bangladesh, ^cCenter for Environmental Conservation and Research Safety, University of Toyama, 3190 Gofuku, Toyama, 930-8555, Japan, and ^dDepartment of Applied Chemistry, Faculty of Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
^*Correspondence e-mail: motaharche@yahoo.com

Edited by K. Fejfarova, Institute of Macromolecular Chemistry, AS CR, v.v.i, Czech Republic (Received 30 April 2015; accepted 15 May 2015; online 28 May 2015)

In the title complex, [Cu(C₁₆H₂₄N₃S₂)₂], the Cu^II atom is coordinated by two azomethine N and two thiolate S atoms of the chelating Schiff base ligands, resulting in a distorted square-planar coordination environment. The S—Cu—N chelating angle is of 84.41 (5)°. The Cu^II atom is located on a crystallographic inversion centre, leading to a trans configuration of the N,S-chelating ligands.

Keywords: crystal structure; copper(II) complex; dithiocarbazate ligand.

CCDC reference: 1057813

1. Chemical context

Bidentate Schiff bases of S-methyl or S-benzyl dithiocarbazates and their metal complexes have received considerable attention for their possible bioactivities (Chan et al., 2008 ; How et al., 2008 ; Ali et al., 2002 ; Chew et al., 2004 ; Crouse et al., 2004 ). As part of our ongoing structural studies on these S-containing Schiff bases (Howlader et al., 2015 ; Begum et al., 2015 ), we report herein the structure of a copper(II) complex with the (dimethylaminobenzylidene)dithiocarbazate ligand.

2. Structural commentary

In the crystal, the bis-chelated Cu^II complex resides on a crystallographic inversion centre and the two chelating Schiff bases, in their deprotonated imino thiolate form, coordinate the metal centre via the azomethine nitrogen N1 and thiolate sulfur S1 atoms in a trans-planar configuration (Fig. 1). The Cu1—S and Cu1—N coordination bond lengths are of 2.2557 (6) and 2.0060 (14) Å, respectively, with an S1—Cu—N1 chelating angle of 84.41 (5)°. It is worth of note that copper(II) complexes with similar dithiocarbazate ligands assume a distorted tetrahedral configuration as well (Tarafder, et al., 2008 ; Manan, et al., 2011 ). In these derivatives the coordination distances are close comparable to those here reported. On the other hand the present Cu—S and Cu—N bond lengths are slightly longer with respect to those measured in the centrosymmetric complex with ligand bearing a benzyl group at the S atom [Cu—S = 2.165 (1), Cu—N = 1.929 (4) Å; Tian, et al., 1998 ).

Figure 1
Drawing (ellipsoid probability at 50%) of the CuL₂ complex with atom labels of the crystallographic independent unit (primed atoms at −x + 2, −y, −z + 1).

3. Supramolecular features

The crystal packing shows almost planar complexes piled along axis b with a stacking distance of 5.23947 (10) Å. (Fig. 2)

Figure 2
Crystal packing of the CuL₂ complex viewed down the b axis.

4. Synthesis and crystallization

A solution of Cu(CH₃COO)₂·H₂O (0.10 g, 0.5 mmol, 15 mL methanol) was added to a solution of the N,N′-dimethylaminobenzaldehyde Schiff base of S-hexyldithiocarbazate (0.32 g, 1.0 mmol, 10 mL methanol). The resulting mixture was stirred at room temperature for seven hours. A dark reddish brown precipitate was formed, filtered off, washed with methanol and dried in vacuo over anhydrous CaCl₂. Dark reddish brown single crystals of the compound, suitable for X-ray diffraction, were obtained by slow evaporation from a mixture of dichloromethane and acetonitrile (2:1), m.p. 437 K.

5. Database survey

The structure of the corresponding copper(II) complex with N,N′-dimethylaminophenyl but having a benzyl group replacing the hexyl alkyl chain at S has been reported (Tian, et al., 1998).

6. Refinement

Crystal data, data collection and structure refinement details are summarized in Table 1. All H atoms were fixed geometrically (C—H = 0.95–0.99 Å) and refined as riding, with U_iso(H) = 1.2 U_eq(C).

Table 1
Experimental details

Crystal data
Chemical formula	[Cu(C₁₆H₂₄N₃S₂)₂]
M_r	708.56
Crystal system, space group	Monoclinic, P2₁/n
Temperature (K)	173
a, b, c (Å)	15.0457 (4), 5.23947 (10), 22.1944 (5)
β (°)	95.7007 (7)
V (Å³)	1740.96 (7)
Z	2
Radiation type	Mo Kα
μ (mm⁻¹)	0.90
Crystal size (mm)	0.24 × 0.17 × 0.05

Data collection
Diffractometer	Rigaku R-AXIS RAPID
Absorption correction	Multi-scan (ABSCOR; Rigaku, 1995 )
T_min, T_max	0.787, 0.956
No. of measured, independent and observed [I > 2σ(I)] reflections	16718, 3979, 3506
R_int	0.023
(sin θ/λ)_max (Å⁻¹)	0.649

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.036, 0.102, 1.10
No. of reflections	3979
No. of parameters	199
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.85, −0.49
Computer programs: RAPID-AUTO (Rigaku, 2001 ), SIR92 (Altomare et al., 1994 ), SHELXL97 (Sheldrick, 2008 ) and CrystalStructure (Rigaku, 2010 ).

Supporting information

CCDC reference: 1057813

Crystal structure: contains datablocks General, I. DOI: 10.1107/S2056989015009342/ff2136sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S2056989015009342/ff2136Isup2.hkl

checkCIF report

Chemical context top

Bidentate Schiff bases of S-methyl or S-benzyl dithiocarbazates and their metal complexes have received considerable attention for their possible bioactivities (Chan et al., 2008; How et al., 2008; Ali et al., 2002; Chew et al., 2004; Crouse et al., 2004). As part of our ongoing structural studies on these S-containing Schiff bases (Howlader et al., 2015; Begum et al., 2015), we report herein the structure of the copper complex with the (dimethylaminobenzylidene)dithiocarbazate ligand.

Structural commentary top

In the crystal, the bischelated Cu^II complex resides on a crystallographic inversion centre and the two chelating Schiff bases, in their deprotonated imino thiolate form, coordinate the metal centre via the azomethine nitrogen N1 and thiolate sulphur S1 atoms in a trans-planar configuration (Fig. 1). The Cu1—S and Cu1—N coordination bond distances are of 2.2557 (6) and 2.0060 (14) Å, respectively, with a S1—Cu—N1 chelating angle of 84.41 (5)°. It is worth of note that copper(II) complexes with similar dithiocarbazate ligands assume a distorted tetrahedral configuration as well (Tarafder, et al., 2008; Manan, et al., 2011). In these derivatives the coordination distances are close comparable to those here reported. On the other hand the present Cu—S and Cu—N bond lengths are slightly longer with respect to those measured in the centrosymmetric complex with ligand bearing a benzyl group at S atom [Cu—S = 2.165 (1), Cu—N = 1.929 (4) Å; Tian, et al., 1998).

Supramolecular features top

The crystal packing shows almost planar complexes piled along axis b with a stacking distance of 5.23947 (10) Å. (Fig. 2)

Synthesis and crystallization top

A solution of Cu(CH₃COO)₂.H₂O (0.10 g, 0.5 mmol, 15 mL methanol) was added to a solution of the N,N'-dimethylaminobenzaldehyde Schiff base of S-hexyldithiocarbazate (0.32 g, 1.0 mmol, 10 mL methanol ). The resulting mixture was stirred at room temperature for seven hours. A dark reddish brown precipitate was formed, filtered off, washed with methanol and dried in vacuo over anhydrous CaCl₂. Dark reddish brown single crystals of the compound, suitable for X-ray diffraction, were obtained by slow evaporation from a mixture of dichloromethane and acetonitrile (2:1). M.P. 437 K.

Database survey top

The structure of the corresponding copper(II) complex with dimethylaminophenyl but having a benzyl group replacing the hexyl alkyl chain at S has been reported (Tian, et al., 1998).

Refinement top

Related literature top

For the structure of the uncoordinated Schiff base and of the Ni derivative, see the two references of Howlader et al. (2015).

Computing details top

Data collection: RAPID-AUTO (Rigaku, 2001); cell refinement: RAPID-AUTO (Rigaku, 2001); data reduction: RAPID-AUTO (Rigaku, 2001); program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: CrystalStructure (Rigaku, 2010); software used to prepare material for publication: CrystalStructure (Rigaku, 2010).

Figures top

	Fig. 1. Drawing (ellipsoid probability at 50%) of the CuL₂ complex with atom labels of the crystallographic independent unit (primed atoms at -x + 2, -y, -z + 1).
	Fig. 2. Crystal packing of the CuL₂ complex viewed down the b axis.

Bis{S-hexyl 3-[4-(dimethylamino)benzylidene]dithiocarbazato-κ²N³,S}copper(II) top

Crystal data top

[Cu(C₁₆H₂₄N₃S₂)₂]	F(000) = 750.00
M_r = 708.56	D_x = 1.352 Mg m⁻³
Monoclinic, P2₁/n	Mo Kα radiation, λ = 0.71075 Å
Hall symbol: -P 2yn	Cell parameters from 14172 reflections
a = 15.0457 (4) Å	θ = 3.1–27.4°
b = 5.23947 (10) Å	µ = 0.90 mm⁻¹
c = 22.1944 (5) Å	T = 173 K
β = 95.7007 (7)°	Platelet, red
V = 1740.96 (7) Å³	0.24 × 0.17 × 0.05 mm
Z = 2

Data collection top

Rigaku R-AXIS RAPID diffractometer	3506 reflections with I > 2σ(I)
Detector resolution: 10.000 pixels mm^-1	R_int = 0.023
ω scans	θ_max = 27.5°
Absorption correction: multi-scan (ABSCOR; Rigaku, 1995)	h = −19→19
T_min = 0.787, T_max = 0.956	k = −6→6
16718 measured reflections	l = −28→28
3979 independent reflections

Refinement top

Refinement on F²	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.036	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.102	H-atom parameters constrained
S = 1.10	w = 1/[σ²(F_o²) + (0.0579P)² + 0.429P] where P = (F_o² + 2F_c²)/3
3979 reflections	(Δ/σ)_max = 0.002
199 parameters	Δρ_max = 0.85 e Å⁻³
0 restraints	Δρ_min = −0.49 e Å⁻³
Primary atom site location: structure-invariant direct methods

Crystal data top

[Cu(C₁₆H₂₄N₃S₂)₂]	V = 1740.96 (7) Å³
M_r = 708.56	Z = 2
Monoclinic, P2₁/n	Mo Kα radiation
a = 15.0457 (4) Å	µ = 0.90 mm⁻¹
b = 5.23947 (10) Å	T = 173 K
c = 22.1944 (5) Å	0.24 × 0.17 × 0.05 mm
β = 95.7007 (7)°

Data collection top

Rigaku R-AXIS RAPID diffractometer	3979 independent reflections
Absorption correction: multi-scan (ABSCOR; Rigaku, 1995)	3506 reflections with I > 2σ(I)
T_min = 0.787, T_max = 0.956	R_int = 0.023
16718 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.036	0 restraints
wR(F²) = 0.102	H-atom parameters constrained
S = 1.10	Δρ_max = 0.85 e Å⁻³
3979 reflections	Δρ_min = −0.49 e Å⁻³
199 parameters

Special details top

Geometry. ENTER SPECIAL DETAILS OF THE MOLECULAR GEOMETRY

Refinement. Refinement was performed using all reflections. The weighted R-factor (wR) and goodness of fit (S) are based on F². R-factor (gt) are based on F. The threshold expression of F² > 2.0 σ(F²) is used only for calculating R-factor (gt).

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

	x	y	z	U_iso*/U_eq
Cu1	1.0000	0.0000	0.5000	0.04758 (12)
S1	1.12679 (3)	0.22896 (13)	0.49888 (2)	0.06611 (19)
S2	1.17728 (3)	0.56787 (10)	0.40439 (2)	0.05451 (15)
N1	0.98526 (9)	0.0699 (3)	0.41070 (6)	0.0427 (4)
N2	1.03819 (9)	0.2568 (3)	0.38625 (6)	0.0421 (3)
N3	0.83204 (12)	−0.0665 (4)	0.11956 (7)	0.0572 (5)
C1	0.91075 (10)	−0.0399 (3)	0.30708 (7)	0.0362 (4)
C2	0.84924 (10)	−0.2217 (4)	0.28137 (7)	0.0392 (4)
C3	0.82330 (11)	−0.2318 (3)	0.22036 (7)	0.0403 (4)
C4	0.85831 (11)	−0.0592 (4)	0.18022 (7)	0.0388 (4)
C5	0.92043 (11)	0.1218 (4)	0.20563 (8)	0.0429 (4)
C6	0.94524 (10)	0.1320 (4)	0.26705 (8)	0.0405 (4)
C7	0.76158 (14)	−0.2364 (4)	0.09510 (8)	0.0551 (5)
C8	0.87505 (14)	0.0873 (5)	0.07706 (8)	0.0565 (5)
C9	0.93057 (10)	−0.0546 (4)	0.37229 (7)	0.0407 (4)
C10	1.10238 (11)	0.3347 (4)	0.42509 (8)	0.0452 (4)
C11	1.12802 (12)	0.6732 (4)	0.33101 (9)	0.0496 (4)
C12	1.15878 (11)	0.5323 (3)	0.27685 (9)	0.0439 (4)
C13	1.11147 (11)	0.6348 (4)	0.21775 (9)	0.0459 (4)
C14	1.13850 (13)	0.5022 (4)	0.16172 (9)	0.0487 (5)
C15	1.08905 (13)	0.5981 (5)	0.10294 (10)	0.0565 (5)
C16	1.11550 (17)	0.4573 (6)	0.04766 (10)	0.0715 (7)
H1	0.8248	−0.3418	0.3072	0.0470*
H2	0.7812	−0.3567	0.2050	0.0484*
H3	0.9459	0.2399	0.1797	0.0515*
H4	0.9866	0.2584	0.2826	0.0486*
H5	0.7793	−0.4136	0.1039	0.0662*
H6	0.7511	−0.2124	0.0512	0.0662*
H7	0.7067	−0.1982	0.1137	0.0662*
H8	0.8469	0.0556	0.0360	0.0678*
H9	0.9385	0.0427	0.0792	0.0678*
H10	0.8689	0.2682	0.0871	0.0678*
H11	0.8968	−0.1807	0.3906	0.0488*
H12	1.0623	0.6556	0.3298	0.0595*
H13	1.1414	0.8569	0.3267	0.0595*
H14	1.1459	0.3479	0.2804	0.0527*
H15	1.2241	0.5531	0.2765	0.0527*
H16	1.0462	0.6158	0.2189	0.0551*
H17	1.1245	0.8193	0.2148	0.0551*
H18	1.1275	0.3168	0.1654	0.0584*
H19	1.2034	0.5264	0.1598	0.0584*
H20	1.0240	0.5780	0.1050	0.0678*
H21	1.1015	0.7823	0.0985	0.0678*
H22	1.1790	0.4859	0.0438	0.0858*
H23	1.0800	0.5210	0.0114	0.0858*
H24	1.1046	0.2742	0.0522	0.0858*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Cu1	0.02944 (16)	0.0819 (3)	0.03109 (16)	−0.01276 (13)	0.00126 (11)	−0.01776 (13)
S1	0.0422 (3)	0.1173 (5)	0.0373 (3)	−0.0323 (3)	−0.00378 (18)	−0.0104 (3)
S2	0.0418 (3)	0.0645 (3)	0.0554 (3)	−0.0158 (2)	−0.0040 (2)	−0.0138 (3)
N1	0.0291 (7)	0.0632 (9)	0.0353 (7)	−0.0061 (6)	0.0014 (6)	−0.0142 (7)
N2	0.0318 (7)	0.0544 (8)	0.0393 (7)	−0.0057 (6)	−0.0004 (6)	−0.0139 (6)
N3	0.0543 (10)	0.0814 (12)	0.0336 (8)	−0.0194 (9)	−0.0065 (7)	0.0048 (8)
C1	0.0267 (7)	0.0471 (9)	0.0337 (8)	0.0006 (6)	−0.0019 (6)	−0.0090 (6)
C2	0.0361 (8)	0.0464 (9)	0.0341 (8)	−0.0067 (7)	−0.0012 (6)	−0.0027 (7)
C3	0.0387 (8)	0.0443 (9)	0.0363 (8)	−0.0055 (7)	−0.0049 (7)	−0.0045 (7)
C4	0.0333 (8)	0.0477 (9)	0.0341 (8)	0.0025 (7)	−0.0024 (6)	−0.0016 (7)
C5	0.0360 (8)	0.0486 (9)	0.0430 (9)	−0.0039 (7)	−0.0016 (7)	0.0045 (7)
C6	0.0317 (8)	0.0439 (9)	0.0445 (9)	−0.0043 (6)	−0.0040 (7)	−0.0050 (7)
C7	0.0637 (12)	0.0624 (12)	0.0358 (9)	−0.0053 (9)	−0.0127 (8)	−0.0041 (8)
C8	0.0594 (12)	0.0718 (13)	0.0379 (9)	0.0012 (10)	0.0025 (8)	0.0085 (9)
C9	0.0279 (7)	0.0589 (10)	0.0350 (8)	−0.0053 (7)	0.0016 (6)	−0.0101 (7)
C10	0.0325 (8)	0.0612 (10)	0.0418 (9)	−0.0057 (7)	0.0025 (7)	−0.0180 (8)
C11	0.0399 (9)	0.0428 (9)	0.0647 (12)	−0.0006 (7)	−0.0017 (8)	−0.0078 (8)
C12	0.0339 (8)	0.0409 (8)	0.0559 (11)	0.0017 (6)	−0.0010 (7)	0.0008 (7)
C13	0.0355 (8)	0.0374 (8)	0.0636 (11)	0.0020 (7)	−0.0015 (8)	0.0082 (8)
C14	0.0400 (9)	0.0490 (10)	0.0561 (11)	0.0058 (7)	0.0000 (8)	0.0137 (8)
C15	0.0447 (10)	0.0612 (11)	0.0625 (12)	0.0047 (9)	−0.0002 (9)	0.0239 (10)
C16	0.0617 (14)	0.1008 (18)	0.0516 (12)	0.0101 (12)	0.0035 (10)	0.0275 (12)

Geometric parameters (Å, º) top

Cu1—S1	2.2557 (6)	C2—H1	0.950
Cu1—S1ⁱ	2.2557 (6)	C3—H2	0.950
Cu1—N1	2.0060 (14)	C5—H3	0.950
Cu1—N1ⁱ	2.0060 (14)	C6—H4	0.950
S1—C10	1.7333 (19)	C7—H5	0.980
S2—C10	1.7540 (19)	C7—H6	0.980
S2—C11	1.807 (2)	C7—H7	0.980
N1—N2	1.405 (2)	C8—H8	0.980
N1—C9	1.300 (2)	C8—H9	0.980
N2—C10	1.295 (2)	C8—H10	0.980
N3—C4	1.365 (3)	C9—H11	0.950
N3—C7	1.448 (3)	C11—H12	0.990
N3—C8	1.442 (3)	C11—H13	0.990
C1—C2	1.409 (3)	C12—H14	0.990
C1—C6	1.401 (3)	C12—H15	0.990
C1—C9	1.450 (3)	C13—H16	0.990
C2—C3	1.372 (3)	C13—H17	0.990
C3—C4	1.408 (3)	C14—H18	0.990
C4—C5	1.409 (3)	C14—H19	0.990
C5—C6	1.378 (3)	C15—H20	0.990
C11—C12	1.521 (3)	C15—H21	0.990
C12—C13	1.526 (3)	C16—H22	0.980
C13—C14	1.515 (3)	C16—H23	0.980
C14—C15	1.522 (3)	C16—H24	0.980
C15—C16	1.518 (4)

S1—Cu1—S1ⁱ	180.00 (3)	N3—C7—H7	109.471
S1—Cu1—N1	84.41 (5)	H5—C7—H6	109.470
S1—Cu1—N1ⁱ	95.59 (5)	H5—C7—H7	109.466
S1ⁱ—Cu1—N1	95.59 (5)	H6—C7—H7	109.470
S1ⁱ—Cu1—N1ⁱ	84.41 (5)	N3—C8—H8	109.474
N1—Cu1—N1ⁱ	180.00 (9)	N3—C8—H9	109.468
Cu1—S1—C10	94.61 (6)	N3—C8—H10	109.474
C10—S2—C11	103.41 (9)	H8—C8—H9	109.477
Cu1—N1—N2	119.84 (10)	H8—C8—H10	109.470
Cu1—N1—C9	123.85 (13)	H9—C8—H10	109.464
N2—N1—C9	116.27 (14)	N1—C9—H11	113.512
N1—N2—C10	112.12 (14)	C1—C9—H11	113.515
C4—N3—C7	121.09 (17)	S2—C11—H12	108.342
C4—N3—C8	121.64 (17)	S2—C11—H13	108.340
C7—N3—C8	117.24 (15)	C12—C11—H12	108.348
C2—C1—C6	116.61 (14)	C12—C11—H13	108.348
C2—C1—C9	115.46 (15)	H12—C11—H13	107.429
C6—C1—C9	127.93 (15)	C11—C12—H14	109.470
C1—C2—C3	122.46 (16)	C11—C12—H15	109.469
C2—C3—C4	120.79 (15)	C13—C12—H14	109.463
N3—C4—C3	121.06 (16)	C13—C12—H15	109.473
N3—C4—C5	121.94 (17)	H14—C12—H15	108.061
C3—C4—C5	117.00 (15)	C12—C13—H16	108.791
C4—C5—C6	121.71 (16)	C12—C13—H17	108.792
C1—C6—C5	121.43 (15)	C14—C13—H16	108.801
N1—C9—C1	132.97 (16)	C14—C13—H17	108.796
S1—C10—S2	112.88 (10)	H16—C13—H17	107.674
S1—C10—N2	127.03 (15)	C13—C14—H18	108.802
S2—C10—N2	120.09 (14)	C13—C14—H19	108.799
S2—C11—C12	115.75 (13)	C15—C14—H18	108.789
C11—C12—C13	110.86 (14)	C15—C14—H19	108.785
C12—C13—C14	113.82 (15)	H18—C14—H19	107.662
C13—C14—C15	113.83 (16)	C14—C15—H20	109.040
C14—C15—C16	112.79 (18)	C14—C15—H21	109.036
C1—C2—H1	118.769	C16—C15—H20	109.026
C3—C2—H1	118.774	C16—C15—H21	109.020
C2—C3—H2	119.601	H20—C15—H21	107.805
C4—C3—H2	119.605	C15—C16—H22	109.477
C4—C5—H3	119.145	C15—C16—H23	109.474
C6—C5—H3	119.143	C15—C16—H24	109.466
C1—C6—H4	119.289	H22—C16—H23	109.466
C5—C6—H4	119.283	H22—C16—H24	109.475
N3—C7—H5	109.479	H23—C16—H24	109.470
N3—C7—H6	109.472

Symmetry code: (i) −x+2, −y, −z+1.

Experimental details

Crystal data
Chemical formula	[Cu(C₁₆H₂₄N₃S₂)₂]
M_r	708.56
Crystal system, space group	Monoclinic, P2₁/n
Temperature (K)	173
a, b, c (Å)	15.0457 (4), 5.23947 (10), 22.1944 (5)
β (°)	95.7007 (7)
V (Å³)	1740.96 (7)
Z	2
Radiation type	Mo Kα
µ (mm⁻¹)	0.90
Crystal size (mm)	0.24 × 0.17 × 0.05

Data collection
Diffractometer	Rigaku R-AXIS RAPID diffractometer
Absorption correction	Multi-scan (ABSCOR; Rigaku, 1995)
T_min, T_max	0.787, 0.956
No. of measured, independent and observed [I > 2σ(I)] reflections	16718, 3979, 3506
R_int	0.023
(sin θ/λ)_max (Å⁻¹)	0.649

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.036, 0.102, 1.10
No. of reflections	3979
No. of parameters	199
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.85, −0.49

Computer programs: RAPID-AUTO (Rigaku, 2001), SIR92 (Altomare et al., 1994), SHELXL97 (Sheldrick, 2008), CrystalStructure (Rigaku, 2010).

Acknowledgements

MSB and MMH are grateful to the Department of Chemistry, Rajshahi University, for the provision of laboratory facilities. MCS acknowledges the Department of Applied Chemistry, Toyama University, for providing funds for single-crystal X-ray analyses.

References

Ali, M. A., Mirza, A. H., Butcher, R. J., Tarafder, M. T. H., Keat, T. B. & Ali Manaf, A. (2002). J. Inorg. Biochem. 92, 141–148. PubMed Google Scholar
Altomare, A., Cascarano, G., Giacovazzo, C., Guagliardi, A., Burla, M. C., Polidori, G. & Camalli, M. (1994). J. Appl. Cryst. 27, 435. CrossRef Web of Science IUCr Journals Google Scholar
Begum, M. S., Howlader, M. B. H., Sheikh, M. C., Miyatake, R. & Zangrando, E. (2015). Acta Cryst. E71, m63–m64. CSD CrossRef IUCr Journals Google Scholar
Chan, M. E., Crouse, K. A., Tahir, M. I. M., Rosli, R., Umar-Tsafe, N. & Cowley, A. R. (2008). Polyhedron, 27, 1141–1149. CSD CrossRef CAS Google Scholar
Chew, K. B., Tarafder, M. T. H., Crouse, K. A., Ali, A. M., Yamin, B. M. & Fun, H. K. (2004). Polyhedron, 23, 1385–1392. Web of Science CSD CrossRef CAS Google Scholar
Crouse, K. A., Chew, K. B., Tarafder, M. T. H., Kasbollah, A., Ali, A. M., Yamin, B. M. & Fun, H. K. (2004). Polyhedron, 23, 161–168. Web of Science CSD CrossRef CAS Google Scholar
How, F. N. F., Crouse, K. A., Tahir, M. I. M., Tarafder, M. T. H. & Cowley, A. R. (2008). Polyhedron, 27, 3325–3329. Web of Science CSD CrossRef CAS Google Scholar
Howlader, M. B. H., Begum, M. S., Sheikh, M. C., Miyatake, R. & Zangrando, E. (2015). Acta Cryst. E71, m26–m27. CSD CrossRef IUCr Journals Google Scholar
Manan, M. A. F. A., Tahir, M. I. M., Crouse, K. A., Rosli, R., How, F. N.-F. & Watkin, D. J. (2011). J. Chem. Crystallogr. 41, 1866–1871. CSD CrossRef Google Scholar
Rigaku (1995). ABSCOR. Rigaku Corporation, Tokyo, Japan. Google Scholar
Rigaku (2001). RAPID-AUTO. Rigaku Corporation, Tokyo, Japan. Google Scholar
Rigaku (2010). Crystal Structure. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Tarafder, M. T. H., Islam, M. T., Islam, M. A. A. A. A., Chantrapromma, S. & Fun, H.-K. (2008). Acta Cryst. E64, m416–m417. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Tian, Y.-P., Duan, C.-Y., You, X.-Z., Mak, T. C. W., Luo, Q. & Zhou, J.-Y. (1998). Transition Met. Chem. 23, 17–20. CSD CrossRef CAS Google Scholar

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Volume 71| Part 6| June 2015| Pages 706-708

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