Crystal structure of di­aqua­bis­(2,6-di­methyl­pyrazine-κN)bis­(thio­cyanato-κN)cobalt(II) 2,5-di­methyl­pyrazine tris­olvate

Suckert, S.; Wöhlert, S.; Jess, I.; Näther, C.

doi:10.1107/S2056989015024184

metal-organic compounds

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ISSN: 2056-9890

Volume 71| Part 12| December 2015| Pages m269-m270

https://doi.org/10.1107/S2056989015024184

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Crystal structure of diaquabis(2,6-dimethylpyrazine-κN)bis(thiocyanato-κN)cobalt(II) 2,5-dimethylpyrazine trisolvate

Stefan Suckert,^a ^* Susanne Wöhlert,^a Inke Jess ^a and Christian Näther ^a

^aInstitut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth-Strasse 2, 24118 Kiel, Germany
^*Correspondence e-mail: ssuckert@ac.uni-kiel.de

Edited by M. Weil, Vienna University of Technology, Austria (Received 10 December 2015; accepted 16 December 2015; online 24 December 2015)

In the crystal structure of the title compound, [Co(NCS)₂(C₆H₈N₂)₂(H₂O)₂]·3C₆H₈N₂, the Co^II cation is coordinated by two terminally N-bound thiocyanate anions, two water molecules and two 2,6-dimethylpyrazine ligands, forming a discrete complex with a slightly distorted octahedral N₄O₂ coordination environment. The asymmetric unit contains one Co^II cation and three halves of 2,5-dimethylpyrazine solvate molecules, all entities being completed by inversion symmetry, as well as one thiocyanate anion, an aqua ligand and a 2,6-dimethylpyrazine ligand, all in general positions. In the crystal, discrete complexes are arranged in a way that cavities are formed where the noncoordinating 2,5-dimethylpyrazine molecules are located. The coordination of the latter to the metal is prevented due to the bulky methyl groups in vicinal positions to the N atoms, leading to a preferential coordination through the 2,6-dimethylpyrazine ligands. The complex molecules are linked by O—H⋯N hydrogen bonds between the water H atoms and the N atoms of 2,5-dimethylpyrazine solvent molecules, leading to a layered structure extending parallel to (100).

Keywords: crystal structure; coordination compound; octahedral coordination; cobalt(II); dimethylpyrazine.

CCDC reference: 1442780

1. Related literature

The crystal structure of the 2,5-dimethylpyrazine monosolvate of the title compound was reported recently (Suckert et al., 2015b ). For the structures of other metal thiocyanates with 2,5-dimethylpyrazine or 2,6-dimethylpyrazine, see: Otieno et al. (2003 ); Mahmoudi & Morsali (2009 ); Suckert et al. (2015a ).

2. Experimental

2.1. Crystal data

[Co(NCS)₂(C₆H₈N₂)₂(H₂O)₂]·C₆H₈N₂
M_r = 751.84
Triclinic, $[P \overline 1]$
a = 9.3296 (8) Å
b = 10.8407 (8) Å
c = 11.3906 (9) Å
α = 103.231 (9)°
β = 111.888 (9)°
γ = 104.123 (9)°
V = 968.99 (15) Å³
Z = 1
Mo Kα radiation
μ = 0.60 mm⁻¹
T = 200 K
0.17 × 0.13 × 0.06 mm

2.2. Data collection

Stoe IPDS-1 diffractometer
Absorption correction: numerical (X-SHAPE and X-RED32; Stoe, 2008 ) T_min = 0.909, T_max = 0.963
8838 measured reflections
4092 independent reflections
3540 reflections with I > 2σ(I)
R_int = 0.049

2.3. Refinement

R[F² > 2σ(F²)] = 0.047
wR(F²) = 0.130
S = 1.05
4092 reflections
228 parameters
H-atom parameters constrained
Δρ_max = 0.37 e Å⁻³
Δρ_min = −0.79 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1O1⋯N30	0.82	1.98	2.796 (2)	172
O1—H2O1⋯N40ⁱ	0.82	2.00	2.816 (2)	174
Symmetry code: (i) -x+1, -y+1, -z+1.

Data collection: X-AREA (Stoe, 2008); cell refinement: X-AREA; data reduction: X-AREA; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2015 ); molecular graphics: XP in SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 1999 ); software used to prepare material for publication: publCIF (Westrip, 2010 ).

Supporting information

CCDC reference: 1442780

Crystal structure: contains datablocks I, global. DOI: https://doi.org/10.1107/S2056989015024184/wm5255sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989015024184/wm5255Isup2.hkl

checkCIF report

Synthesis and crystallization top

Co(SCN)₂ and 2,5-dimethylpyrazine (97%) were purchased from Alfa Aesar. The title compound was prepared by the reaction of 28.9 mg (0.15 mmol) Co(NCS)₂·H₂O in 195.0 µl (1.8 mmol) 2,5-dimethylpyrazine at room temperature. After a few days, plate-like crystals of the title compound were obtained that contained 2,6-dimethylpyrazine in addition. Later it was found that the commercially available 2,5-dimethylpyrazine contains about 3%_wt of 2,6-dimethylpyrazine as a contamination.

Refinement top

C-bound hydrogen atoms were positioned with idealized geometry (methyl H atoms were allowed to rotate but not to tip) and were refined with U_eq(H) = 1.2U_eq(C) (1.5 for methyl H atoms) using a riding model with C—H = 0.95 Å for aromatic H atoms and C—H = 0.98 Å for methyl H atoms. The O-bound hydrogen atoms were located in a difference map. The O—H bond length was constrained to 0.84 Å and H atoms were refined with U_iso(H) = 1.5U_eq(O) using a riding model.

Related literature top

The crystal structure of the 2,5-dimethylpyrazine monosolvate of the title compound was reported recently (Suckert et al., 2015b). For the structures of other metal thiocyanates with 2,5-dimethylpyrazine or 2,6-dimethylpyrazine, see: Otieno et al. (2003); Mahmoudi et al. (2009); Suckert et al. (2015a).

Structure description top

The crystal structure of the 2,5-dimethylpyrazine monosolvate of the title compound was reported recently (Suckert et al., 2015b). For the structures of other metal thiocyanates with 2,5-dimethylpyrazine or 2,6-dimethylpyrazine, see: Otieno et al. (2003); Mahmoudi et al. (2009); Suckert et al. (2015a).

Synthesis and crystallization top

Refinement details top

Computing details top

Data collection: X-AREA (Stoe, 2008); cell refinement: X-AREA (Stoe, 2008); data reduction: X-AREA (Stoe, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2015); molecular graphics: XP in SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 1999); software used to prepare material for publication: publCIF (Westrip, 2010).

Figures top

	Fig. 1. The structures of the molecular entities of the title compound. Displacement ellipsoids are drawn at the 50% probability level. [Symmetry codes: (i) -x + 1, y + 1, -z + 1; (ii) -x + 1, -y + 1, -z; (iii) -x + 1, -y + 2, -z + 1; (iv) -x + 1, -y + 1, -z + 2.]
	Fig. 2. The crystal packing of the title compound in a view along [100]. Hydrogen bonding is shown as dashed lines.

Diaquabis(2,6-dimethylpyrazine-κN)bis(thiocyanato-κN)cobalt(II) 2,5-dimethylpyrazine trisolvate top

Crystal data top

[Co(NCS)₂(C₆H₈N₂)₂(H₂O)₂]·C₆H₈N₂	Z = 1
M_r = 751.84	F(000) = 395
Triclinic, P1	D_x = 1.288 Mg m⁻³
a = 9.3296 (8) Å	Mo Kα radiation, λ = 0.71073 Å
b = 10.8407 (8) Å	Cell parameters from 8844 reflections
c = 11.3906 (9) Å	θ = 2.6–22.0°
α = 103.231 (9)°	µ = 0.60 mm⁻¹
β = 111.888 (9)°	T = 200 K
γ = 104.123 (9)°	Plate, purple
V = 968.99 (15) Å³	0.17 × 0.13 × 0.06 mm

Data collection top

Stoe IPDS-1 diffractometer	3540 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	R_int = 0.049
phi scans	θ_max = 27.4°, θ_min = 2.6°
Absorption correction: numerical (X-SHAPE and X-RED32; Stoe, 2008)	h = −11→11
T_min = 0.909, T_max = 0.963	k = −13→13
8838 measured reflections	l = −14→14
4092 independent reflections

Refinement top

Refinement on F²	0 restraints
Least-squares matrix: full	Hydrogen site location: mixed
R[F² > 2σ(F²)] = 0.047	H-atom parameters constrained
wR(F²) = 0.130	w = 1/[σ²(F_o²) + (0.0772P)² + 0.2726P] where P = (F_o² + 2F_c²)/3
S = 1.05	(Δ/σ)_max = 0.032
4092 reflections	Δρ_max = 0.37 e Å⁻³
228 parameters	Δρ_min = −0.79 e Å⁻³

Crystal data top

[Co(NCS)₂(C₆H₈N₂)₂(H₂O)₂]·C₆H₈N₂	γ = 104.123 (9)°
M_r = 751.84	V = 968.99 (15) Å³
Triclinic, P1	Z = 1
a = 9.3296 (8) Å	Mo Kα radiation
b = 10.8407 (8) Å	µ = 0.60 mm⁻¹
c = 11.3906 (9) Å	T = 200 K
α = 103.231 (9)°	0.17 × 0.13 × 0.06 mm
β = 111.888 (9)°

Data collection top

Stoe IPDS-1 diffractometer	4092 independent reflections
Absorption correction: numerical (X-SHAPE and X-RED32; Stoe, 2008)	3540 reflections with I > 2σ(I)
T_min = 0.909, T_max = 0.963	R_int = 0.049
8838 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.047	0 restraints
wR(F²) = 0.130	H-atom parameters constrained
S = 1.05	Δρ_max = 0.37 e Å⁻³
4092 reflections	Δρ_min = −0.79 e Å⁻³
228 parameters

Special details top

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.

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

	x	y	z	U_iso*/U_eq
Co1	0.5000	0.5000	0.5000	0.02727 (14)
N1	0.4584 (2)	0.32856 (19)	0.34740 (18)	0.0352 (4)
C1	0.4289 (3)	0.2251 (2)	0.2698 (2)	0.0337 (4)
S1	0.38697 (12)	0.08006 (6)	0.15982 (8)	0.0628 (2)
N10	0.2366 (2)	0.47166 (18)	0.40932 (18)	0.0339 (4)
C10	0.1832 (3)	0.5739 (2)	0.4318 (2)	0.0351 (4)
H10	0.2616	0.6618	0.4927	0.042*
C11	0.0166 (3)	0.5558 (3)	0.3691 (2)	0.0397 (5)
C12	−0.0429 (3)	0.3307 (3)	0.2646 (3)	0.0492 (6)
C13	0.1238 (3)	0.3506 (2)	0.3258 (2)	0.0416 (5)
H13	0.1579	0.2757	0.3073	0.050*
C14	−0.0406 (3)	0.6725 (3)	0.3916 (3)	0.0533 (6)
H14A	−0.0693	0.6993	0.3118	0.080*
H14B	0.0483	0.7496	0.4710	0.080*
H14C	−0.1384	0.6451	0.4069	0.080*
C15	−0.1686 (4)	0.1922 (4)	0.1715 (4)	0.0830 (12)
H15A	−0.2500	0.1654	0.2047	0.125*
H15B	−0.1129	0.1265	0.1684	0.125*
H15C	−0.2252	0.1939	0.0804	0.125*
N11	−0.0949 (2)	0.4341 (2)	0.2867 (2)	0.0482 (5)
C20	0.8651 (3)	0.4951 (3)	0.9060 (3)	0.0539 (7)
H20	0.7663	0.4936	0.8381	0.065*
N20	0.8981 (3)	0.3820 (3)	0.8896 (2)	0.0532 (6)
C24	1.0768 (4)	0.2597 (4)	0.9700 (4)	0.0691 (8)
H24A	0.9786	0.1815	0.9460	0.104*
H24B	1.1671	0.2702	1.0554	0.104*
H24C	1.1115	0.2448	0.8982	0.104*
N30	0.5186 (3)	0.87945 (19)	0.4487 (2)	0.0425 (4)
C30	0.3732 (3)	0.8941 (2)	0.4031 (2)	0.0431 (5)
H30	0.2788	0.8192	0.3329	0.052*
C31	0.3532 (3)	1.0149 (2)	0.4541 (2)	0.0423 (5)
C21	1.0360 (3)	0.3855 (3)	0.9857 (3)	0.0515 (6)
C34	0.1905 (4)	1.0312 (3)	0.4020 (4)	0.0596 (7)
H34A	0.1321	1.0032	0.4529	0.089*
H34B	0.1241	0.9743	0.3059	0.089*
H34C	0.2076	1.1267	0.4126	0.089*
N40	0.4624 (3)	0.4506 (2)	0.86521 (18)	0.0390 (4)
C40	0.4770 (3)	0.5764 (2)	0.9248 (2)	0.0398 (5)
H40	0.4610	0.6333	0.8726	0.048*
C41	0.5148 (3)	0.6284 (2)	1.0603 (2)	0.0369 (4)
C44	0.5314 (4)	0.7707 (3)	1.1266 (3)	0.0566 (7)
H44A	0.4322	0.7690	1.1384	0.085*
H44B	0.5434	0.8240	1.0697	0.085*
H44C	0.6294	0.8122	1.2152	0.085*
O1	0.5467 (2)	0.62397 (14)	0.39186 (14)	0.0351 (3)
H1O1	0.5451	0.7009	0.4059	0.053*
H2O1	0.5481	0.5992	0.3192	0.053*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Co1	0.0321 (2)	0.02219 (19)	0.0215 (2)	0.00973 (14)	0.00805 (14)	0.00454 (14)
N1	0.0432 (9)	0.0284 (8)	0.0262 (8)	0.0120 (7)	0.0122 (7)	0.0035 (7)
C1	0.0383 (10)	0.0302 (10)	0.0301 (10)	0.0121 (8)	0.0140 (8)	0.0094 (8)
S1	0.0962 (6)	0.0294 (3)	0.0568 (4)	0.0147 (3)	0.0435 (4)	−0.0014 (3)
N10	0.0333 (8)	0.0325 (9)	0.0306 (8)	0.0121 (7)	0.0091 (7)	0.0114 (7)
C10	0.0354 (10)	0.0360 (10)	0.0334 (10)	0.0142 (8)	0.0129 (8)	0.0145 (9)
C11	0.0358 (10)	0.0493 (13)	0.0389 (11)	0.0175 (9)	0.0186 (9)	0.0196 (10)
C12	0.0354 (11)	0.0461 (13)	0.0484 (14)	0.0073 (10)	0.0107 (10)	0.0086 (11)
C13	0.0364 (11)	0.0353 (11)	0.0411 (12)	0.0093 (9)	0.0104 (9)	0.0094 (9)
C14	0.0482 (13)	0.0617 (16)	0.0614 (16)	0.0317 (12)	0.0263 (12)	0.0268 (14)
C15	0.0432 (15)	0.0558 (18)	0.094 (3)	−0.0011 (13)	0.0064 (16)	−0.0079 (18)
N11	0.0344 (9)	0.0547 (12)	0.0478 (11)	0.0135 (9)	0.0140 (8)	0.0158 (10)
C20	0.0376 (12)	0.0704 (18)	0.0329 (12)	0.0066 (12)	0.0059 (9)	0.0141 (12)
N20	0.0433 (11)	0.0593 (14)	0.0330 (10)	0.0024 (10)	0.0077 (8)	0.0089 (10)
C24	0.0691 (19)	0.072 (2)	0.0572 (18)	0.0237 (16)	0.0231 (15)	0.0190 (16)
N30	0.0653 (12)	0.0271 (8)	0.0355 (10)	0.0184 (9)	0.0236 (9)	0.0090 (8)
C30	0.0606 (14)	0.0251 (9)	0.0374 (11)	0.0145 (9)	0.0182 (10)	0.0084 (9)
C31	0.0601 (14)	0.0296 (10)	0.0404 (12)	0.0175 (10)	0.0249 (11)	0.0132 (9)
C21	0.0431 (12)	0.0624 (16)	0.0350 (12)	0.0073 (11)	0.0122 (10)	0.0154 (11)
C34	0.0575 (15)	0.0407 (13)	0.078 (2)	0.0197 (12)	0.0283 (15)	0.0200 (14)
N40	0.0508 (10)	0.0414 (10)	0.0277 (8)	0.0217 (8)	0.0174 (8)	0.0128 (8)
C40	0.0538 (12)	0.0402 (11)	0.0320 (11)	0.0226 (10)	0.0205 (9)	0.0164 (9)
C41	0.0453 (11)	0.0369 (11)	0.0309 (10)	0.0178 (9)	0.0178 (9)	0.0123 (9)
C44	0.090 (2)	0.0413 (13)	0.0464 (14)	0.0312 (14)	0.0351 (14)	0.0140 (12)
O1	0.0549 (9)	0.0257 (7)	0.0277 (7)	0.0181 (6)	0.0194 (6)	0.0101 (6)

Geometric parameters (Å, º) top

Co1—N1ⁱ	2.0718 (18)	N20—C21	1.327 (4)
Co1—N1	2.0718 (18)	C24—C21	1.494 (5)
Co1—O1	2.0942 (15)	C24—H24A	0.9800
Co1—O1ⁱ	2.0942 (15)	C24—H24B	0.9800
Co1—N10ⁱ	2.1895 (18)	C24—H24C	0.9800
Co1—N10	2.1895 (18)	N30—C31ⁱⁱⁱ	1.316 (3)
N1—C1	1.153 (3)	N30—C30	1.324 (4)
C1—S1	1.621 (2)	C30—C31	1.393 (3)
N10—C13	1.320 (3)	C30—H30	0.9500
N10—C10	1.333 (3)	C31—N30ⁱⁱⁱ	1.316 (3)
C10—C11	1.387 (3)	C31—C34	1.481 (4)
C10—H10	0.9500	C21—C20ⁱⁱ	1.373 (4)
C11—N11	1.320 (3)	C34—H34A	0.9800
C11—C14	1.494 (4)	C34—H34B	0.9800
C12—N11	1.335 (4)	C34—H34C	0.9800
C12—C13	1.382 (3)	N40—C40	1.326 (3)
C12—C15	1.497 (4)	N40—C41^iv	1.336 (3)
C13—H13	0.9500	C40—C41	1.386 (3)
C14—H14A	0.9800	C40—H40	0.9500
C14—H14B	0.9800	C41—N40^iv	1.336 (3)
C14—H14C	0.9800	C41—C44	1.495 (3)
C15—H15A	0.9800	C44—H44A	0.9800
C15—H15B	0.9800	C44—H44B	0.9800
C15—H15C	0.9800	C44—H44C	0.9800
C20—N20	1.325 (4)	O1—H1O1	0.8175
C20—C21ⁱⁱ	1.373 (4)	O1—H2O1	0.8152
C20—H20	0.9500

N1ⁱ—Co1—N1	180.0	C11—N11—C12	118.4 (2)
N1ⁱ—Co1—O1	88.87 (7)	N20—C20—C21ⁱⁱ	124.4 (3)
N1—Co1—O1	91.13 (7)	N20—C20—H20	117.8
N1ⁱ—Co1—O1ⁱ	91.13 (7)	C21ⁱⁱ—C20—H20	117.8
N1—Co1—O1ⁱ	88.87 (7)	C20—N20—C21	117.1 (2)
O1—Co1—O1ⁱ	180.0	C21—C24—H24A	109.5
N1ⁱ—Co1—N10ⁱ	91.60 (7)	C21—C24—H24B	109.5
N1—Co1—N10ⁱ	88.40 (7)	H24A—C24—H24B	109.5
O1—Co1—N10ⁱ	88.71 (7)	C21—C24—H24C	109.5
O1ⁱ—Co1—N10ⁱ	91.29 (7)	H24A—C24—H24C	109.5
N1ⁱ—Co1—N10	88.40 (7)	H24B—C24—H24C	109.5
N1—Co1—N10	91.60 (7)	C31ⁱⁱⁱ—N30—C30	117.2 (2)
O1—Co1—N10	91.29 (7)	N30—C30—C31	122.6 (2)
O1ⁱ—Co1—N10	88.71 (7)	N30—C30—H30	118.7
N10ⁱ—Co1—N10	180.0	C31—C30—H30	118.7
C1—N1—Co1	172.52 (19)	N30ⁱⁱⁱ—C31—C30	120.3 (2)
N1—C1—S1	179.6 (2)	N30ⁱⁱⁱ—C31—C34	117.4 (2)
C13—N10—C10	117.27 (19)	C30—C31—C34	122.4 (2)
C13—N10—Co1	120.17 (16)	N20—C21—C20ⁱⁱ	118.5 (3)
C10—N10—Co1	122.53 (14)	N20—C21—C24	118.3 (3)
N10—C10—C11	122.0 (2)	C20ⁱⁱ—C21—C24	123.2 (3)
N10—C10—H10	119.0	C31—C34—H34A	109.5
C11—C10—H10	119.0	C31—C34—H34B	109.5
N11—C11—C10	120.1 (2)	H34A—C34—H34B	109.5
N11—C11—C14	118.6 (2)	C31—C34—H34C	109.5
C10—C11—C14	121.3 (2)	H34A—C34—H34C	109.5
N11—C12—C13	121.0 (2)	H34B—C34—H34C	109.5
N11—C12—C15	118.8 (2)	C40—N40—C41^iv	118.11 (19)
C13—C12—C15	120.3 (3)	N40—C40—C41	122.6 (2)
N10—C13—C12	121.3 (2)	N40—C40—H40	118.7
N10—C13—H13	119.3	C41—C40—H40	118.7
C12—C13—H13	119.3	N40^iv—C41—C40	119.3 (2)
C11—C14—H14A	109.5	N40^iv—C41—C44	118.5 (2)
C11—C14—H14B	109.5	C40—C41—C44	122.2 (2)
H14A—C14—H14B	109.5	C41—C44—H44A	109.5
C11—C14—H14C	109.5	C41—C44—H44B	109.5
H14A—C14—H14C	109.5	H44A—C44—H44B	109.5
H14B—C14—H14C	109.5	C41—C44—H44C	109.5
C12—C15—H15A	109.5	H44A—C44—H44C	109.5
C12—C15—H15B	109.5	H44B—C44—H44C	109.5
H15A—C15—H15B	109.5	Co1—O1—H1O1	125.2
C12—C15—H15C	109.5	Co1—O1—H2O1	126.2
H15A—C15—H15C	109.5	H1O1—O1—H2O1	107.2
H15B—C15—H15C	109.5

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

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1—H1O1···N30	0.82	1.98	2.796 (2)	172
O1—H2O1···N40ⁱ	0.82	2.00	2.816 (2)	174

Symmetry code: (i) −x+1, −y+1, −z+1.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1—H1O1···N30	0.82	1.98	2.796 (2)	172.2
O1—H2O1···N40ⁱ	0.82	2.00	2.816 (2)	174.2

Symmetry code: (i) −x+1, −y+1, −z+1.

Acknowledgements

This project was supported by the Deutsche Forschungsgemeinschaft (project No. Na 720/5-1) and the State of Schleswig–Holstein. We thank Professor Dr Wolfgang Bensch for access to his experimental facilities.

References

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Volume 71| Part 12| December 2015| Pages m269-m270

https://doi.org/10.1107/S2056989015024184

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

Crystal structure of di­aqua­bis­­(2,6-di­methyl­pyrazine-κN)bis­­(thio­cyanato-κN)cobalt(II) 2,5-di­methyl­pyrazine tris­­olvate

1. Related literature

2. Experimental

2.1. Crystal data

2.2. Data collection

2.3. Refinement

Supporting information

Acknowledgements

References

metal-organic compounds

Crystal structure of diaquabis(2,6-dimethylpyrazine-κN)bis(thiocyanato-κN)cobalt(II) 2,5-dimethylpyrazine trisolvate