metal-organic compounds
1,4,8,11-Tetraazoniacyclotetradecane tetrachloridocobaltate(II) dichloride
aLaboratoire des Matériaux Utiles, Institut National de Recherche et d'Analyse Physico-chimique, Pole Technologique de Sidi-Thabet, 2020 Tunis, Tunisia, and bLaboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna Bizerte, Tunisia
*Correspondence e-mail: dhaouadihassouna@yahoo.fr
The 10H28N4)[CoCl4]Cl2, contains two half-molecules of the macrocycle, which are both completed by crystallographic inversion symmetry. In the dianion, the Co2+ cation is tetrahedrally coordinated by four Cl atoms; the Co—Cl bond lengths correlate with the number of hydrogen bonds that the chloride ions accept. The crystal cohesion is supported by electrostatic interactions which, together with numerous N—H⋯Cl, N—H⋯(Cl,Cl) and C—H⋯Cl hydrogen bonds, lead to a three-dimensional network.
of the title compound, (CRelated literature
For background to organic–inorganic hybrid networks and their properties, see: Bu et al. (2001); Mitzi et al. (1999). For hydrogen-bonding in supramolecular networks, see: Brammer et al. (2002). For related structures, see: El Glaoui et al. (2009); Jakubas et al. (2005); Adamski et al. (2009); Boyd & McFadyen (2007); Hashizume et al. (1999).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell CAD-4 EXPRESS; data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536810025079/hb5513sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810025079/hb5513Isup2.hkl
The hexahydrate of chloride cobalt (II) CoCl2.6H2O (3.1 mmol) was added to an aqueous solution containing a stochiometric ratio of C10H24N4 (1,4,8,11-tetraazacyclotetradecane) (3.1 mmol) under continuous stirring. A pink precipitate was formed, which was completely dissolved by adding an aqueous solution of HCl until it disappeared. The obtained solution was slowly evaporated at room temperature for several days until the formation of blue prisms of (I). The synthesis is reproducible and crystals obtained in this way are stable for a long time under normal conditions of temperature and humidity.
The rational design and synthesis of organic-inorganic hybrid materials have attracted an increasing interest in recent years not only from a structural point of view, but also due to their potential applications in different areas such as catalysis, medicine, electrical conductivity, magnetism and
(e.g. Bu et al., 2001).A large number of transition metal when associated to organic molecule which presents potential sites of the hydrogen bonding interactions, exhibit interesting one- (1-D), two- (2-D), and three-dimensional (3-D) structures. These organic molecules may be present different and interesting properties which can profoundly influence the structures of inorganic component in the resultant hybrid material. Such organic-inorganic hybrid materials can combine appropriate characteristics of each component to produce novel structural types, as well as new properties arising from the interplay of the two components (Mitzi et al., 1999).
The
of the [CoCl4](C10H28N4),2Cl, (I). contains one tetrachlorocobalt anion, one organic cation and two chloride anion as shown in Fig. 1. The cohesion and the stability between these different components are assured by the network hydrogen bonding of type (N—H···Cl). However, the energetic of N—H···Cl—M (M = metal) hydrogen bonds and their possible roles in supramolecular chemistry have only been recently described in details (Brammer et al., 2002). This type of hydrogen bond is also observed in other hybrid compounds such as Bis(5-Chloro-2,4-Dimethoxyanilinium) Tetrachlorozincate Trihydrate (El Glaoui et al., 2009) and pyrrolidinium hexachloroantimonate (V) (Jakubas et al., 2005).The Co2+ entity is tetrahedrally coordinated to four chloride atoms as shown in Figure 2. The distortion from the ideal geometry is small. This situation is also observed in others compounds which contain CoCl42- entity as an anion (Adamski et al., 2009). Examination of the CoCl42- geometry shows two types of Co—Cl distances. The largest ones 2.3170 (8) Å, 2.2963 (7) Å and 2.2950 (9) Å, while the smallest one is 2.2609 (8) Å. The average values of the Co—Cl distances and Cl—Co—Cl angles are 2.2923 Å and 109.52°, respectively. These geometrical features have also been noticed in others
(Boyd et al., 2007); (Hashizume et al., 1999).The differences in the Co—Cl bond lengths correlate with the number of hydrogen bonds accepted by the Cl atom: Co—Cl4 bond is the longest (2.3170 (8) Å); Cl4 accepts three H-bonds, Co—Cl2 and Co—Cl3 have similar, intermediate lengths, and Cl1, which accepts only C—H···Cl hydrogen bond, makes the shortest Co—Cl bond.
The four N atoms of the macrocyclic ring are protonated, which provide the cations as formula (C10H28N4)4+, for neutralize the negative charge of the anionic part. Crystal cohesion and stability are supported by electrostatic interactions which, together with N—H···Cl and C—H···Cl hydrogen bonds, build up a three-dimensional network.
For background to organic–inorganic hybrid networks and their properties, see: Bu et al. (2001); Mitzi et al. (1999). For hydrogen-bonding in supramolecular networks, see: Brammer et al. (2002). For related structures, see: El Glaoui et al. (2009); Jakubas et al. (2005); Adamski et al. (2009); Boyd & McFadyen (2007); Hashizume et al. (1999).
For related literature, see: Farrugia (1998); Harms & Wocadlo (1996).
Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell
CAD-4 EXPRESS (Enraf–Nonius, 1994); data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. The molecular structure of (I): displacement ellipsoids are drawn at the 30% probability level. H atoms are represented as spheres of arbitrary radius. [Symmetry code: (i) (-x + 1, -y + 1, -z + 1))(ii) (x, -1 + y, z)]. | |
Fig. 2. Projection of (I) along the a axis. |
(C10H28N4)[CoCl4]Cl2 | Z = 2 |
Mr = 475.99 | F(000) = 490 |
Triclinic, P1 | Dx = 1.578 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.4058 (10) Å | Cell parameters from 25 reflections |
b = 8.1244 (10) Å | θ = 12–15° |
c = 17.147 (1) Å | µ = 1.66 mm−1 |
α = 84.36 (2)° | T = 293 K |
β = 85.56 (2)° | Prism, blue |
γ = 77.84 (2)° | 0.20 × 0.15 × 0.10 mm |
V = 1001.97 (19) Å3 |
Enraf–Nonius CAD-4 diffractometer | Rint = 0.012 |
Radiation source: fine-focus sealed tube | θmax = 27.0°, θmin = 2.4° |
Graphite monochromator | h = −9→2 |
non–profiled ω/2θ scans | k = −10→10 |
21712 measured reflections | l = −21→21 |
4375 independent reflections | 2 standard reflections every 120 min |
4023 reflections with I > 2σ(I) | intensity decay: −1% |
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)] = 0.037 | H-atom parameters constrained |
wR(F2) = 0.098 | w = 1/[σ2(Fo2) + (0.0484P)2 + 1.0784P] where P = (Fo2 + 2Fc2)/3 |
S = 1.13 | (Δ/σ)max = 0.001 |
4375 reflections | Δρmax = 0.99 e Å−3 |
191 parameters | Δρmin = −0.70 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: 0.0098 (15) |
(C10H28N4)[CoCl4]Cl2 | γ = 77.84 (2)° |
Mr = 475.99 | V = 1001.97 (19) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.4058 (10) Å | Mo Kα radiation |
b = 8.1244 (10) Å | µ = 1.66 mm−1 |
c = 17.147 (1) Å | T = 293 K |
α = 84.36 (2)° | 0.20 × 0.15 × 0.10 mm |
β = 85.56 (2)° |
Enraf–Nonius CAD-4 diffractometer | Rint = 0.012 |
21712 measured reflections | 2 standard reflections every 120 min |
4375 independent reflections | intensity decay: −1% |
4023 reflections with I > 2σ(I) |
R[F2 > 2σ(F2)] = 0.037 | 0 restraints |
wR(F2) = 0.098 | H-atom parameters constrained |
S = 1.13 | Δρmax = 0.99 e Å−3 |
4375 reflections | Δρmin = −0.70 e Å−3 |
191 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
Co | 0.70021 (4) | 0.68008 (4) | 0.739869 (18) | 0.02545 (12) | |
Cl1 | 0.59983 (10) | 0.94777 (8) | 0.77340 (4) | 0.03784 (17) | |
Cl2 | 0.98382 (9) | 0.53726 (8) | 0.77981 (4) | 0.03170 (15) | |
Cl3 | 0.72293 (9) | 0.69599 (9) | 0.60513 (3) | 0.03302 (16) | |
Cl4 | 0.49963 (9) | 0.51312 (8) | 0.79699 (4) | 0.03371 (16) | |
Cl5 | 0.13290 (9) | 0.05084 (8) | 0.62097 (4) | 0.03219 (15) | |
Cl6 | 0.79324 (9) | 0.72834 (9) | 0.98838 (4) | 0.03847 (17) | |
N4 | 0.3477 (3) | 0.3336 (3) | 0.65786 (12) | 0.0285 (4) | |
H4A | 0.3385 | 0.3878 | 0.7018 | 0.034* | |
H4B | 0.3043 | 0.2383 | 0.6705 | 0.034* | |
N1 | 1.1540 (3) | 0.7804 (3) | 0.88701 (12) | 0.0287 (4) | |
H1A | 1.0461 | 0.7781 | 0.9147 | 0.034* | |
H1B | 1.1948 | 0.6781 | 0.8688 | 0.034* | |
N2 | 1.1506 (3) | 0.7095 (2) | 1.07369 (12) | 0.0260 (4) | |
H2A | 1.0476 | 0.7014 | 1.0510 | 0.031* | |
H2B | 1.1708 | 0.6263 | 1.1126 | 0.031* | |
N3 | 0.7691 (3) | 0.1442 (3) | 0.53021 (13) | 0.0288 (4) | |
H3A | 0.7801 | 0.0709 | 0.4932 | 0.035* | |
H3B | 0.8470 | 0.0955 | 0.5675 | 0.035* | |
C5 | 0.8823 (4) | 1.0892 (3) | 1.18244 (15) | 0.0317 (5) | |
H5A | 0.7709 | 1.0990 | 1.2168 | 0.038* | |
H5B | 0.9785 | 1.1149 | 1.2117 | 0.038* | |
C7 | 0.5487 (3) | 0.2847 (3) | 0.63236 (14) | 0.0266 (5) | |
H7A | 0.6180 | 0.2286 | 0.6766 | 0.032* | |
H7B | 0.5958 | 0.3855 | 0.6142 | 0.032* | |
C2 | 1.3114 (3) | 0.6829 (3) | 1.01371 (15) | 0.0293 (5) | |
H2C | 1.3274 | 0.5700 | 0.9968 | 0.035* | |
H2D | 1.4227 | 0.6890 | 1.0387 | 0.035* | |
C8 | 0.2242 (3) | 0.4440 (3) | 0.59907 (15) | 0.0282 (5) | |
H8A | 0.0990 | 0.4699 | 0.6224 | 0.034* | |
H8B | 0.2223 | 0.3819 | 0.5537 | 0.034* | |
C1 | 1.2914 (3) | 0.8090 (3) | 0.94166 (14) | 0.0276 (5) | |
H1C | 1.2531 | 0.9223 | 0.9585 | 0.033* | |
H1D | 1.4111 | 0.8016 | 0.9134 | 0.033* | |
C4 | 0.9406 (4) | 0.9072 (3) | 1.16103 (15) | 0.0308 (5) | |
H4C | 0.9587 | 0.8328 | 1.2089 | 0.037* | |
H4D | 0.8417 | 0.8787 | 1.1345 | 0.037* | |
C6 | 0.5756 (3) | 0.1671 (3) | 0.56660 (15) | 0.0274 (5) | |
H6A | 0.5508 | 0.0582 | 0.5874 | 0.033* | |
H6B | 0.4884 | 0.2139 | 0.5268 | 0.033* | |
C10 | 0.1664 (3) | 0.7006 (3) | 0.50678 (16) | 0.0297 (5) | |
H10A | 0.1674 | 0.6241 | 0.4667 | 0.036* | |
H10B | 0.0399 | 0.7333 | 0.5279 | 0.036* | |
C3 | 1.1177 (4) | 0.8759 (3) | 1.10836 (17) | 0.0336 (6) | |
H3C | 1.1104 | 0.9656 | 1.0663 | 0.040* | |
H3D | 1.2218 | 0.8794 | 1.1387 | 0.040* | |
C9 | 0.2862 (4) | 0.6085 (3) | 0.57213 (18) | 0.0371 (6) | |
H9A | 0.2739 | 0.6784 | 0.6157 | 0.045* | |
H9B | 0.4151 | 0.5849 | 0.5532 | 0.045* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Co | 0.02721 (19) | 0.02537 (18) | 0.02405 (18) | −0.00576 (13) | 0.00061 (12) | −0.00424 (12) |
Cl1 | 0.0455 (4) | 0.0261 (3) | 0.0424 (4) | −0.0072 (3) | −0.0007 (3) | −0.0074 (3) |
Cl2 | 0.0307 (3) | 0.0305 (3) | 0.0328 (3) | −0.0039 (2) | −0.0015 (2) | −0.0029 (2) |
Cl3 | 0.0324 (3) | 0.0433 (4) | 0.0248 (3) | −0.0102 (3) | −0.0001 (2) | −0.0059 (2) |
Cl4 | 0.0350 (3) | 0.0343 (3) | 0.0348 (3) | −0.0141 (3) | 0.0055 (2) | −0.0087 (2) |
Cl5 | 0.0361 (3) | 0.0301 (3) | 0.0321 (3) | −0.0084 (2) | −0.0056 (2) | −0.0048 (2) |
Cl6 | 0.0296 (3) | 0.0405 (4) | 0.0482 (4) | −0.0144 (3) | 0.0001 (3) | −0.0041 (3) |
N4 | 0.0340 (11) | 0.0270 (10) | 0.0257 (10) | −0.0094 (9) | 0.0056 (8) | −0.0071 (8) |
N1 | 0.0315 (11) | 0.0259 (10) | 0.0297 (10) | −0.0072 (8) | 0.0032 (8) | −0.0080 (8) |
N2 | 0.0289 (10) | 0.0208 (9) | 0.0271 (10) | −0.0036 (8) | 0.0004 (8) | −0.0001 (8) |
N3 | 0.0262 (10) | 0.0248 (10) | 0.0340 (11) | −0.0006 (8) | −0.0022 (8) | −0.0060 (8) |
C5 | 0.0376 (14) | 0.0331 (13) | 0.0241 (11) | −0.0065 (11) | 0.0034 (10) | −0.0066 (10) |
C7 | 0.0286 (12) | 0.0254 (11) | 0.0263 (11) | −0.0059 (9) | −0.0027 (9) | −0.0030 (9) |
C2 | 0.0253 (11) | 0.0258 (11) | 0.0351 (13) | −0.0011 (9) | 0.0020 (10) | −0.0062 (10) |
C8 | 0.0258 (11) | 0.0281 (12) | 0.0310 (12) | −0.0055 (9) | 0.0033 (9) | −0.0076 (9) |
C1 | 0.0256 (11) | 0.0301 (12) | 0.0288 (12) | −0.0094 (9) | 0.0040 (9) | −0.0067 (9) |
C4 | 0.0355 (13) | 0.0282 (12) | 0.0280 (12) | −0.0071 (10) | 0.0053 (10) | −0.0030 (10) |
C6 | 0.0262 (11) | 0.0235 (11) | 0.0328 (12) | −0.0051 (9) | 0.0007 (9) | −0.0054 (9) |
C10 | 0.0235 (11) | 0.0314 (12) | 0.0347 (13) | −0.0064 (9) | −0.0006 (10) | −0.0045 (10) |
C3 | 0.0334 (13) | 0.0319 (13) | 0.0383 (14) | −0.0100 (11) | 0.0063 (11) | −0.0151 (11) |
C9 | 0.0392 (14) | 0.0281 (13) | 0.0475 (16) | −0.0122 (11) | −0.0130 (12) | −0.0003 (11) |
Co—Cl1 | 2.2609 (8) | C7—C6 | 1.523 (3) |
Co—Cl2 | 2.2950 (9) | C7—H7A | 0.9700 |
Co—Cl3 | 2.2963 (7) | C7—H7B | 0.9700 |
Co—Cl4 | 2.3170 (8) | C2—C1 | 1.521 (4) |
N4—C7 | 1.500 (3) | C2—H2C | 0.9700 |
N4—C8 | 1.509 (3) | C2—H2D | 0.9700 |
N4—H4A | 0.9000 | C8—C9 | 1.522 (4) |
N4—H4B | 0.9000 | C8—H8A | 0.9700 |
N1—C1 | 1.503 (3) | C8—H8B | 0.9700 |
N1—C5i | 1.515 (3) | C1—H1C | 0.9700 |
N1—H1A | 0.9000 | C1—H1D | 0.9700 |
N1—H1B | 0.9000 | C4—C3 | 1.523 (4) |
N2—C3 | 1.495 (3) | C4—H4C | 0.9700 |
N2—C2 | 1.506 (3) | C4—H4D | 0.9700 |
N2—H2A | 0.9000 | C6—H6A | 0.9700 |
N2—H2B | 0.9000 | C6—H6B | 0.9700 |
N3—C6 | 1.500 (3) | C10—N3ii | 1.506 (3) |
N3—C10ii | 1.506 (3) | C10—C9 | 1.521 (4) |
N3—H3A | 0.9000 | C10—H10A | 0.9700 |
N3—H3B | 0.9000 | C10—H10B | 0.9700 |
C5—N1i | 1.515 (3) | C3—H3C | 0.9700 |
C5—C4 | 1.524 (4) | C3—H3D | 0.9700 |
C5—H5A | 0.9700 | C9—H9A | 0.9700 |
C5—H5B | 0.9700 | C9—H9B | 0.9700 |
Cl1—Co—Cl2 | 117.71 (3) | N2—C2—H2D | 108.6 |
Cl1—Co—Cl3 | 106.35 (3) | C1—C2—H2D | 108.6 |
Cl2—Co—Cl3 | 106.05 (3) | H2C—C2—H2D | 107.6 |
Cl1—Co—Cl4 | 109.41 (3) | N4—C8—C9 | 113.0 (2) |
Cl2—Co—Cl4 | 103.43 (3) | N4—C8—H8A | 109.0 |
Cl3—Co—Cl4 | 114.17 (3) | C9—C8—H8A | 109.0 |
C7—N4—C8 | 116.34 (19) | N4—C8—H8B | 109.0 |
C7—N4—H4A | 108.2 | C9—C8—H8B | 109.0 |
C8—N4—H4A | 108.2 | H8A—C8—H8B | 107.8 |
C7—N4—H4B | 108.2 | N1—C1—C2 | 113.2 (2) |
C8—N4—H4B | 108.2 | N1—C1—H1C | 108.9 |
H4A—N4—H4B | 107.4 | C2—C1—H1C | 108.9 |
C1—N1—C5i | 115.3 (2) | N1—C1—H1D | 108.9 |
C1—N1—H1A | 108.5 | C2—C1—H1D | 108.9 |
C5i—N1—H1A | 108.5 | H1C—C1—H1D | 107.8 |
C1—N1—H1B | 108.5 | C3—C4—C5 | 113.2 (2) |
C5i—N1—H1B | 108.5 | C3—C4—H4C | 108.9 |
H1A—N1—H1B | 107.5 | C5—C4—H4C | 108.9 |
C3—N2—C2 | 114.07 (19) | C3—C4—H4D | 108.9 |
C3—N2—H2A | 108.7 | C5—C4—H4D | 108.9 |
C2—N2—H2A | 108.7 | H4C—C4—H4D | 107.7 |
C3—N2—H2B | 108.7 | N3—C6—C7 | 110.9 (2) |
C2—N2—H2B | 108.7 | N3—C6—H6A | 109.5 |
H2A—N2—H2B | 107.6 | C7—C6—H6A | 109.5 |
C6—N3—C10ii | 117.64 (19) | N3—C6—H6B | 109.5 |
C6—N3—H3A | 107.9 | C7—C6—H6B | 109.5 |
C10ii—N3—H3A | 107.9 | H6A—C6—H6B | 108.1 |
C6—N3—H3B | 107.9 | N3ii—C10—C9 | 112.8 (2) |
C10ii—N3—H3B | 107.9 | N3ii—C10—H10A | 109.0 |
H3A—N3—H3B | 107.2 | C9—C10—H10A | 109.0 |
N1i—C5—C4 | 114.7 (2) | N3ii—C10—H10B | 109.0 |
N1i—C5—H5A | 108.6 | C9—C10—H10B | 109.0 |
C4—C5—H5A | 108.6 | H10A—C10—H10B | 107.8 |
N1i—C5—H5B | 108.6 | N2—C3—C4 | 112.5 (2) |
C4—C5—H5B | 108.6 | N2—C3—H3C | 109.1 |
H5A—C5—H5B | 107.6 | C4—C3—H3C | 109.1 |
N4—C7—C6 | 110.50 (19) | N2—C3—H3D | 109.1 |
N4—C7—H7A | 109.6 | C4—C3—H3D | 109.1 |
C6—C7—H7A | 109.6 | H3C—C3—H3D | 107.8 |
N4—C7—H7B | 109.6 | C10—C9—C8 | 108.7 (2) |
C6—C7—H7B | 109.6 | C10—C9—H9A | 109.9 |
H7A—C7—H7B | 108.1 | C8—C9—H9A | 109.9 |
N2—C2—C1 | 114.7 (2) | C10—C9—H9B | 109.9 |
N2—C2—H2C | 108.6 | C8—C9—H9B | 109.9 |
C1—C2—H2C | 108.6 | H9A—C9—H9B | 108.3 |
Symmetry codes: (i) −x+2, −y+2, −z+2; (ii) −x+1, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···Cl6 | 0.90 | 2.26 | 3.155 (2) | 171 |
N1—H1B···Cl4iii | 0.90 | 2.65 | 3.370 (2) | 138 |
N1—H1B···Cl2 | 0.90 | 2.75 | 3.315 (2) | 122 |
N2—H2A···Cl6 | 0.90 | 2.20 | 3.090 (2) | 170 |
N2—H2B···Cl2iv | 0.90 | 2.51 | 3.284 (2) | 144 |
N2—H2B···Cl4iv | 0.90 | 2.95 | 3.609 (2) | 131 |
N3—H3A···Cl5v | 0.90 | 2.27 | 3.129 (2) | 160 |
N3—H3B···Cl5iii | 0.90 | 2.32 | 3.132 (2) | 151 |
N4—H4A···Cl4 | 0.90 | 2.50 | 3.298 (2) | 147 |
N4—H4A···Cl2vi | 0.90 | 2.93 | 3.508 (2) | 123 |
N4—H4B···Cl5 | 0.90 | 2.43 | 3.192 (2) | 143 |
C2—H2C···Cl6iv | 0.97 | 2.74 | 3.589 (3) | 147 |
C6—H6B···Cl3ii | 0.97 | 2.80 | 3.758 (3) | 169 |
C10—H10A···Cl3ii | 0.97 | 2.92 | 3.820 (3) | 155 |
C3—H3D···Cl1i | 0.97 | 2.74 | 3.610 (3) | 150 |
C3—H3C···Cl6i | 0.97 | 2.79 | 3.634 (3) | 147 |
Symmetry codes: (i) −x+2, −y+2, −z+2; (ii) −x+1, −y+1, −z+1; (iii) x+1, y, z; (iv) −x+2, −y+1, −z+2; (v) −x+1, −y, −z+1; (vi) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | (C10H28N4)[CoCl4]Cl2 |
Mr | 475.99 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 7.4058 (10), 8.1244 (10), 17.147 (1) |
α, β, γ (°) | 84.36 (2), 85.56 (2), 77.84 (2) |
V (Å3) | 1001.97 (19) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.66 |
Crystal size (mm) | 0.20 × 0.15 × 0.10 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 21712, 4375, 4023 |
Rint | 0.012 |
(sin θ/λ)max (Å−1) | 0.638 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.098, 1.13 |
No. of reflections | 4375 |
No. of parameters | 191 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.99, −0.70 |
Computer programs: CAD-4 EXPRESS (Enraf–Nonius, 1994), XCAD4 (Harms & Wocadlo, 1995), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···Cl6 | 0.90 | 2.26 | 3.155 (2) | 171 |
N1—H1B···Cl4i | 0.90 | 2.65 | 3.370 (2) | 138 |
N1—H1B···Cl2 | 0.90 | 2.75 | 3.315 (2) | 122 |
N2—H2A···Cl6 | 0.90 | 2.20 | 3.090 (2) | 170 |
N2—H2B···Cl2ii | 0.90 | 2.51 | 3.284 (2) | 144 |
N2—H2B···Cl4ii | 0.90 | 2.95 | 3.609 (2) | 131 |
N3—H3A···Cl5iii | 0.90 | 2.27 | 3.129 (2) | 160 |
N3—H3B···Cl5i | 0.90 | 2.32 | 3.132 (2) | 151 |
N4—H4A···Cl4 | 0.90 | 2.50 | 3.298 (2) | 147 |
N4—H4A···Cl2iv | 0.90 | 2.93 | 3.508 (2) | 123 |
N4—H4B···Cl5 | 0.90 | 2.43 | 3.192 (2) | 143 |
C2—H2C···Cl6ii | 0.97 | 2.74 | 3.589 (3) | 147 |
C6—H6B···Cl3v | 0.97 | 2.80 | 3.758 (3) | 169 |
C10—H10A···Cl3v | 0.97 | 2.92 | 3.820 (3) | 155 |
C3—H3D···Cl1vi | 0.97 | 2.74 | 3.610 (3) | 150 |
C3—H3C···Cl6vi | 0.97 | 2.79 | 3.634 (3) | 147 |
Symmetry codes: (i) x+1, y, z; (ii) −x+2, −y+1, −z+2; (iii) −x+1, −y, −z+1; (iv) x−1, y, z; (v) −x+1, −y+1, −z+1; (vi) −x+2, −y+2, −z+2. |
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
The rational design and synthesis of organic-inorganic hybrid materials have attracted an increasing interest in recent years not only from a structural point of view, but also due to their potential applications in different areas such as catalysis, medicine, electrical conductivity, magnetism and photochemistry (e.g. Bu et al., 2001).
A large number of transition metal when associated to organic molecule which presents potential sites of the hydrogen bonding interactions, exhibit interesting one- (1-D), two- (2-D), and three-dimensional (3-D) structures. These organic molecules may be present different and interesting properties which can profoundly influence the structures of inorganic component in the resultant hybrid material. Such organic-inorganic hybrid materials can combine appropriate characteristics of each component to produce novel structural types, as well as new properties arising from the interplay of the two components (Mitzi et al., 1999).
The asymmetric unit of the [CoCl4](C10H28N4),2Cl, (I). contains one tetrachlorocobalt anion, one organic cation and two chloride anion as shown in Fig. 1. The cohesion and the stability between these different components are assured by the network hydrogen bonding of type (N—H···Cl). However, the energetic of N—H···Cl—M (M = metal) hydrogen bonds and their possible roles in supramolecular chemistry have only been recently described in details (Brammer et al., 2002). This type of hydrogen bond is also observed in other hybrid compounds such as Bis(5-Chloro-2,4-Dimethoxyanilinium) Tetrachlorozincate Trihydrate (El Glaoui et al., 2009) and pyrrolidinium hexachloroantimonate (V) (Jakubas et al., 2005).
The Co2+ entity is tetrahedrally coordinated to four chloride atoms as shown in Figure 2. The distortion from the ideal geometry is small. This situation is also observed in others compounds which contain CoCl42- entity as an anion (Adamski et al., 2009). Examination of the CoCl42- geometry shows two types of Co—Cl distances. The largest ones 2.3170 (8) Å, 2.2963 (7) Å and 2.2950 (9) Å, while the smallest one is 2.2609 (8) Å. The average values of the Co—Cl distances and Cl—Co—Cl angles are 2.2923 Å and 109.52°, respectively. These geometrical features have also been noticed in others crystal structure (Boyd et al., 2007); (Hashizume et al., 1999).
The differences in the Co—Cl bond lengths correlate with the number of hydrogen bonds accepted by the Cl atom: Co—Cl4 bond is the longest (2.3170 (8) Å); Cl4 accepts three H-bonds, Co—Cl2 and Co—Cl3 have similar, intermediate lengths, and Cl1, which accepts only C—H···Cl hydrogen bond, makes the shortest Co—Cl bond.
The four N atoms of the macrocyclic ring are protonated, which provide the cations as formula (C10H28N4)4+, for neutralize the negative charge of the anionic part. Crystal cohesion and stability are supported by electrostatic interactions which, together with N—H···Cl and C—H···Cl hydrogen bonds, build up a three-dimensional network.