metal-organic compounds
[Bis(3-aminopropyl)amine-κ3N,N′,N′′]bis(thiocyanato-κN)cobalt(II)
aInstitut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24098 Kiel, Germany
*Correspondence e-mail: jboeckmann@ac.uni-kiel.de
The 2(C6H17N3)], consists of one Co2+ cation, two thiocyanate anions and one bis(3-aminopropyl)amine ligand, all in general positions. The cobalt cation is coordinated by five N atoms of two terminal N-bonded thiocyanate anions and one bis(3-aminopropyl)amine ligand, defining a slightly distorted square-pyramidal The molecules are held together in the crystal by weak N—H⋯S interactions.
of the title compound, [Co(NCS)Related literature
For isostructural compounds with copper(II) and cadmium(II) but with an alternate setting of the et al. (1974, 1977). For background to thermal decomposition reactions and the resulting intermediates, see: Boeckmann & Näther (2010, 2011); Boeckmann et al. (2011); Wöhlert et al. (2011); Wriedt et al. (2009a,b); Wriedt & Näther (2010).
see: CannasExperimental
Crystal data
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Refinement
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Data collection: X-AREA (Stoe & Cie, 2008); cell X-AREA; data reduction: X-AREA; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 2011); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536811025876/bt5568sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811025876/bt5568Isup2.hkl
The title compound was prepared by the reaction of 96.6 mg Co(NCS)2.H2O (0.50 mmol), 40.4 µL pyridine (0.50 mmol) and 70.6 µL bis(3-aminopropyl)amine (0.50 mmol) in 1.50 ml water at RT in a closed 3 ml snap cap vial. After one week violet blocks of the title compound were obtained.
All H atoms were located in difference map but were positioned with idealized geometry and were refined isotropically with Ueq(H) = 1.2 Ueq(C) and Ueq(H) = 1.2 Ueq(N) of the parent atom using a riding model with C—H = 0.99 Å, N—H = 0.93 Å (NH1) and N—H = 0.92 Å (NH2).
Data collection: X-AREA (Stoe & Cie, 2008); cell
X-AREA (Stoe & Cie, 2008); data reduction: X-AREA (Stoe & Cie, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 2011); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).[Co(NCS)2(C6H17N3)] | F(000) = 636 |
Mr = 306.32 | Dx = 1.509 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 8000 reflections |
a = 7.5515 (4) Å | θ = 3.2–28.1° |
b = 14.2250 (11) Å | µ = 1.57 mm−1 |
c = 12.8825 (8) Å | T = 170 K |
β = 103.091 (7)° | Block, violet |
V = 1347.88 (15) Å3 | 0.11 × 0.08 × 0.06 mm |
Z = 4 |
Stoe IPDS-1 diffractometer | 3234 independent reflections |
Radiation source: fine-focus sealed tube | 2832 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.043 |
ϕ scans | θmax = 28.1°, θmin = 3.2° |
Absorption correction: numerical (X-SHAPE and X-RED32; Stoe & Cie, 2008) | h = −9→9 |
Tmin = 0.856, Tmax = 0.905 | k = −18→18 |
15883 measured reflections | l = −16→17 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.027 | H-atom parameters constrained |
wR(F2) = 0.070 | w = 1/[σ2(Fo2) + (0.0414P)2 + 0.3919P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max = 0.002 |
3234 reflections | Δρmax = 0.33 e Å−3 |
146 parameters | Δρmin = −0.51 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0069 (15) |
[Co(NCS)2(C6H17N3)] | V = 1347.88 (15) Å3 |
Mr = 306.32 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 7.5515 (4) Å | µ = 1.57 mm−1 |
b = 14.2250 (11) Å | T = 170 K |
c = 12.8825 (8) Å | 0.11 × 0.08 × 0.06 mm |
β = 103.091 (7)° |
Stoe IPDS-1 diffractometer | 3234 independent reflections |
Absorption correction: numerical (X-SHAPE and X-RED32; Stoe & Cie, 2008) | 2832 reflections with I > 2σ(I) |
Tmin = 0.856, Tmax = 0.905 | Rint = 0.043 |
15883 measured reflections |
R[F2 > 2σ(F2)] = 0.027 | 0 restraints |
wR(F2) = 0.070 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.33 e Å−3 |
3234 reflections | Δρmin = −0.51 e Å−3 |
146 parameters |
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. |
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 > 2sigma(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. |
x | y | z | Uiso*/Ueq | ||
Co1 | 0.56529 (3) | 0.529621 (13) | 0.677913 (16) | 0.01799 (9) | |
N1 | 0.70311 (18) | 0.40562 (9) | 0.66179 (10) | 0.0210 (3) | |
H1A | 0.6229 | 0.3651 | 0.6195 | 0.025* | |
H1B | 0.7930 | 0.4192 | 0.6264 | 0.025* | |
N2 | 0.42397 (18) | 0.45541 (10) | 0.78508 (11) | 0.0231 (3) | |
H2 | 0.3396 | 0.4158 | 0.7426 | 0.028* | |
N3 | 0.32593 (19) | 0.60251 (10) | 0.61765 (11) | 0.0260 (3) | |
H3A | 0.3495 | 0.6483 | 0.5722 | 0.031* | |
H3B | 0.2434 | 0.5615 | 0.5779 | 0.031* | |
C1 | 0.7876 (2) | 0.35590 (11) | 0.76221 (14) | 0.0265 (3) | |
H1C | 0.8689 | 0.3995 | 0.8108 | 0.032* | |
H1D | 0.8619 | 0.3028 | 0.7463 | 0.032* | |
C2 | 0.6429 (3) | 0.31937 (12) | 0.81595 (14) | 0.0300 (4) | |
H2A | 0.7001 | 0.2748 | 0.8727 | 0.036* | |
H2B | 0.5521 | 0.2839 | 0.7629 | 0.036* | |
C3 | 0.5447 (3) | 0.39473 (13) | 0.86483 (13) | 0.0301 (4) | |
H3C | 0.4711 | 0.3640 | 0.9097 | 0.036* | |
H3D | 0.6362 | 0.4348 | 0.9119 | 0.036* | |
C4 | 0.3199 (3) | 0.51944 (14) | 0.84044 (15) | 0.0349 (4) | |
H4A | 0.4057 | 0.5638 | 0.8851 | 0.042* | |
H4B | 0.2627 | 0.4817 | 0.8886 | 0.042* | |
C5 | 0.1732 (3) | 0.57537 (16) | 0.76589 (18) | 0.0420 (5) | |
H5A | 0.0926 | 0.5308 | 0.7182 | 0.050* | |
H5B | 0.0987 | 0.6078 | 0.8090 | 0.050* | |
C6 | 0.2402 (3) | 0.64767 (13) | 0.69795 (16) | 0.0355 (4) | |
H6A | 0.1368 | 0.6870 | 0.6611 | 0.043* | |
H6B | 0.3298 | 0.6892 | 0.7442 | 0.043* | |
N11 | 0.6789 (2) | 0.58506 (10) | 0.55469 (12) | 0.0293 (3) | |
C11 | 0.7699 (2) | 0.61541 (10) | 0.50112 (12) | 0.0199 (3) | |
S11 | 0.89760 (6) | 0.65832 (3) | 0.42551 (3) | 0.03094 (12) | |
N21 | 0.70829 (19) | 0.60345 (10) | 0.80127 (12) | 0.0274 (3) | |
C21 | 0.7925 (2) | 0.63897 (11) | 0.87783 (13) | 0.0225 (3) | |
S21 | 0.91711 (7) | 0.68852 (4) | 0.98333 (4) | 0.03999 (14) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Co1 | 0.01799 (12) | 0.01756 (12) | 0.01939 (12) | 0.00138 (7) | 0.00625 (8) | 0.00026 (7) |
N1 | 0.0237 (6) | 0.0202 (6) | 0.0208 (6) | 0.0026 (5) | 0.0087 (5) | 0.0013 (5) |
N2 | 0.0225 (6) | 0.0295 (7) | 0.0195 (6) | −0.0052 (5) | 0.0092 (5) | −0.0009 (5) |
N3 | 0.0243 (7) | 0.0301 (7) | 0.0233 (7) | 0.0076 (5) | 0.0046 (5) | −0.0032 (5) |
C1 | 0.0242 (8) | 0.0232 (7) | 0.0312 (9) | 0.0032 (6) | 0.0045 (6) | 0.0086 (6) |
C2 | 0.0363 (9) | 0.0226 (8) | 0.0311 (9) | −0.0039 (6) | 0.0074 (7) | 0.0103 (6) |
C3 | 0.0369 (9) | 0.0345 (9) | 0.0202 (8) | −0.0070 (7) | 0.0096 (7) | 0.0065 (6) |
C4 | 0.0370 (10) | 0.0456 (10) | 0.0297 (9) | −0.0021 (8) | 0.0235 (8) | −0.0041 (7) |
C5 | 0.0280 (9) | 0.0571 (13) | 0.0476 (12) | 0.0059 (8) | 0.0227 (8) | −0.0088 (9) |
C6 | 0.0339 (9) | 0.0371 (9) | 0.0370 (10) | 0.0144 (7) | 0.0111 (8) | −0.0093 (8) |
N11 | 0.0329 (8) | 0.0246 (7) | 0.0344 (8) | 0.0023 (5) | 0.0163 (6) | 0.0078 (6) |
C11 | 0.0211 (7) | 0.0172 (6) | 0.0210 (7) | 0.0004 (5) | 0.0039 (6) | −0.0016 (5) |
S11 | 0.0279 (2) | 0.0411 (2) | 0.0277 (2) | −0.00521 (17) | 0.01443 (17) | 0.00238 (17) |
N21 | 0.0255 (7) | 0.0272 (7) | 0.0292 (7) | −0.0064 (5) | 0.0053 (6) | −0.0037 (6) |
C21 | 0.0211 (7) | 0.0203 (7) | 0.0275 (8) | −0.0004 (5) | 0.0081 (6) | 0.0015 (6) |
S21 | 0.0455 (3) | 0.0373 (3) | 0.0297 (2) | 0.0007 (2) | −0.0071 (2) | −0.00828 (18) |
Co1—N21 | 2.0043 (14) | C2—C3 | 1.519 (3) |
Co1—N3 | 2.0758 (13) | C2—H2A | 0.9900 |
Co1—N1 | 2.0822 (13) | C2—H2B | 0.9900 |
Co1—N11 | 2.1201 (14) | C3—H3C | 0.9900 |
Co1—N2 | 2.1970 (13) | C3—H3D | 0.9900 |
N1—C1 | 1.486 (2) | C4—C5 | 1.517 (3) |
N1—H1A | 0.9200 | C4—H4A | 0.9900 |
N1—H1B | 0.9200 | C4—H4B | 0.9900 |
N2—C3 | 1.486 (2) | C5—C6 | 1.510 (3) |
N2—C4 | 1.487 (2) | C5—H5A | 0.9900 |
N2—H2 | 0.9300 | C5—H5B | 0.9900 |
N3—C6 | 1.485 (2) | C6—H6A | 0.9900 |
N3—H3A | 0.9200 | C6—H6B | 0.9900 |
N3—H3B | 0.9200 | N11—C11 | 1.162 (2) |
C1—C2 | 1.512 (2) | C11—S11 | 1.6362 (16) |
C1—H1C | 0.9900 | N21—C21 | 1.161 (2) |
C1—H1D | 0.9900 | C21—S21 | 1.6280 (17) |
N21—Co1—N3 | 107.58 (6) | C1—C2—C3 | 114.74 (14) |
N21—Co1—N1 | 109.34 (6) | C1—C2—H2A | 108.6 |
N3—Co1—N1 | 142.97 (5) | C3—C2—H2A | 108.6 |
N21—Co1—N11 | 99.33 (6) | C1—C2—H2B | 108.6 |
N3—Co1—N11 | 89.99 (6) | C3—C2—H2B | 108.6 |
N1—Co1—N11 | 86.80 (5) | H2A—C2—H2B | 107.6 |
N21—Co1—N2 | 90.27 (6) | N2—C3—C2 | 113.84 (13) |
N3—Co1—N2 | 88.24 (6) | N2—C3—H3C | 108.8 |
N1—Co1—N2 | 88.88 (5) | C2—C3—H3C | 108.8 |
N11—Co1—N2 | 170.33 (6) | N2—C3—H3D | 108.8 |
C1—N1—Co1 | 116.24 (10) | C2—C3—H3D | 108.8 |
C1—N1—H1A | 108.2 | H3C—C3—H3D | 107.7 |
Co1—N1—H1A | 108.2 | N2—C4—C5 | 114.03 (15) |
C1—N1—H1B | 108.2 | N2—C4—H4A | 108.7 |
Co1—N1—H1B | 108.2 | C5—C4—H4A | 108.7 |
H1A—N1—H1B | 107.4 | N2—C4—H4B | 108.7 |
C3—N2—C4 | 109.42 (13) | C5—C4—H4B | 108.7 |
C3—N2—Co1 | 113.85 (10) | H4A—C4—H4B | 107.6 |
C4—N2—Co1 | 113.08 (10) | C6—C5—C4 | 115.58 (16) |
C3—N2—H2 | 106.7 | C6—C5—H5A | 108.4 |
C4—N2—H2 | 106.7 | C4—C5—H5A | 108.4 |
Co1—N2—H2 | 106.7 | C6—C5—H5B | 108.4 |
C6—N3—Co1 | 115.82 (11) | C4—C5—H5B | 108.4 |
C6—N3—H3A | 108.3 | H5A—C5—H5B | 107.4 |
Co1—N3—H3A | 108.3 | N3—C6—C5 | 111.42 (15) |
C6—N3—H3B | 108.3 | N3—C6—H6A | 109.3 |
Co1—N3—H3B | 108.3 | C5—C6—H6A | 109.3 |
H3A—N3—H3B | 107.4 | N3—C6—H6B | 109.3 |
N1—C1—C2 | 110.50 (13) | C5—C6—H6B | 109.3 |
N1—C1—H1C | 109.5 | H6A—C6—H6B | 108.0 |
C2—C1—H1C | 109.6 | C11—N11—Co1 | 167.72 (14) |
N1—C1—H1D | 109.5 | N11—C11—S11 | 179.86 (18) |
C2—C1—H1D | 109.5 | C21—N21—Co1 | 174.01 (14) |
H1C—C1—H1D | 108.1 | N21—C21—S21 | 177.91 (15) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···S21i | 0.92 | 2.82 | 3.6177 (14) | 145 |
N1—H1B···S11ii | 0.92 | 2.80 | 3.5665 (14) | 142 |
N2—H2···S11iii | 0.93 | 2.69 | 3.5903 (15) | 162 |
N3—H3A···S21iv | 0.92 | 2.69 | 3.5839 (16) | 165 |
Symmetry codes: (i) −x+3/2, y−1/2, −z+3/2; (ii) −x+2, −y+1, −z+1; (iii) −x+1, −y+1, −z+1; (iv) x−1/2, −y+3/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | [Co(NCS)2(C6H17N3)] |
Mr | 306.32 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 170 |
a, b, c (Å) | 7.5515 (4), 14.2250 (11), 12.8825 (8) |
β (°) | 103.091 (7) |
V (Å3) | 1347.88 (15) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.57 |
Crystal size (mm) | 0.11 × 0.08 × 0.06 |
Data collection | |
Diffractometer | Stoe IPDS1 diffractometer |
Absorption correction | Numerical (X-SHAPE and X-RED32; Stoe & Cie, 2008) |
Tmin, Tmax | 0.856, 0.905 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15883, 3234, 2832 |
Rint | 0.043 |
(sin θ/λ)max (Å−1) | 0.663 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.027, 0.070, 1.04 |
No. of reflections | 3234 |
No. of parameters | 146 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.33, −0.51 |
Computer programs: X-AREA (Stoe & Cie, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP in SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 2011).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···S21i | 0.92 | 2.82 | 3.6177 (14) | 145 |
N1—H1B···S11ii | 0.92 | 2.80 | 3.5665 (14) | 142 |
N2—H2···S11iii | 0.93 | 2.69 | 3.5903 (15) | 162 |
N3—H3A···S21iv | 0.92 | 2.69 | 3.5839 (16) | 165 |
Symmetry codes: (i) −x+3/2, y−1/2, −z+3/2; (ii) −x+2, −y+1, −z+1; (iii) −x+1, −y+1, −z+1; (iv) x−1/2, −y+3/2, z−1/2. |
Acknowledgements
We gratefully acknowledge financial support by the DFG (project number NA 720/3–1) and the State of Schleswig–Holstein. We thank Professor Dr Wolfgang Bensch for access to his experimental facilities. Special thanks go to Inke Jess for her support in single-crystal measurements.
References
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Recently, we reported about thermal decomposition reactions as an alternative synthetic strategy for the rational design of condensed frameworks (Wriedt et al. (2009a,b); Wriedt & Näther (2010)). Herein, transition metal(II) thio- and selenocyanato coordination compounds with different neutral N-donor co-ligands are heated, which leads to a stepwise loss of the neutral co-ligands and to the formation of ligand-deficient intermediates. Depending on the precursor, the dimensionality of the resulting intermediates can simply be predefined. If precursors are used, which consist of bidentate co-ligands, two-dimensional structures can be obatined, in which the metal(II) cations are octahedrally coordinated by four bridging anions and one bridging co-ligand (Wöhlert et al. (2011); Wriedt et al. (2009a,b); Wriedt & Näther (2010)). If precursor complexes with monodentate co-ligands are used, one-dimensional structures are obtained in which the metal(II) cations are only bridged via the anionic ligands (Boeckmann & Näther (2010); Boeckmann & Näther (2011); Boeckmann et al. (2011)). In further work we tried to synthesize octahedral coordinated precursor compounds based on the tridentate co-ligand bis(3-aminopropyl)amin in combination with a volatile monodentate co-ligand like e.g. water or methanol, which on heating should transform into dimers. Surprisingly a five-coordinated complex was obtained which was characterized by single crystal X-ray diffraction.
In the crystal structure the cobalt(II) cations are coordinated by five nitrogen atoms of two terminal N-bonded thiocyanate anions and one tridenate co-ligand bis(3-aminopropyl)amin in a slightly distorted square-pyramidal coordination geometry (Fig. 1). The title compound is isostrucutral to its copper(II) and cadmium(II) thiocyanato compounds reported recently (Cannas et al. (1974); Cannas et al. (1977)). These discrete complexes are arranged into columns which elongated in the direction of the crystallographic a axis (Fig. 2). Each two of these columns are pairwise centrosymmetrically arranged into a three-dimensional packing. The molecules are held together by weak N-H···S interactions.