metal-organic compounds
catena-Poly[bis(4-aminopyridinium) [[diaquamanganese(II)]-di-μ-chlorido] dichloride]
aLaboratoire de Matériaux et Cristallochimie, Faculté des Sciences, El Manar, 2092 Tunis, Tunisia
*Correspondence e-mail: habib.boughzala@ipein.rnu.tn
Single crystals of the title organic–inorganic hybrid, {(C5H7N2)2[MnCl2(H2O)2]Cl2}n, were synthesized from an ethanol solution containing manganese(II) chloride tetrahydrate and 4-aminopyridine under acidic conditions. The contains a disordered organic cation (occupancies in the ratio 0.72:0.28), a chloride anion and an MnCl(H2O) moiety with the MnII atom located on an inversion center. The structure is built up of infinite chains of edge-sharing [MnCl4(H2O)2] octahedra developing parallel to the a axis which are separated by the 4-aminopyridinium ions and discrete chloride ions. The organic cations occupy the empty space around each inorganic chain. Structural cohesion is organized through N—H⋯Cl and O—H⋯Cl hydrogen bonds, which build up a three-dimensional network.
Related literature
For general background to organic–inorganic hybride materials, see: Lacroix et al. (1994); Mitzi (2001); Calabrese et al. (1991); Hong et al. (1992). For related structures, see: Caputo et al. (1976); Hachuła et al. (2009); Zeng et al. (2008).
Experimental
Crystal data
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Refinement
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Data collection: CAD-4 EXPRESS (Duisenberg, 1992; Macíček & Yordanov, 1992); 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: PLATON (Spek, 2009) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536809026804/dn2460sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809026804/dn2460Isup2.hkl
An aqueous HCl (1M) solution, 4-aminopyridine (C5H6N2) and manganese dichloride tetrahydrate (MnCl2.4H2O) in a 2:1:1 molar ratio were mixed and dissolved in sufficient ethanol. Crystal for X-Ray diffraction structural analysis were grown by slow evaporation at room temperature and then set aside for few days to obtain colourless crystals.
All H atoms attached to C atoms and N atom were fixed geometrically and treated as riding with C—H = 0.93 Å and N—H = 0.86 Å with Uiso(H) = 1.2Ueq(C or N). H atoms of water molecule were located in difference Fourier maps and included in the subsequent
using restraints (O—H= 0.82 (1)Å and H···.H= 1.39 (2) Å) with Uiso(H) = 1.5Ueq(O). In the last stage of they were treated as as riding on the O atom.The organic cation is disordered over two positions twisted to each other by about 141° around an axis perpendicular to their mean planes. The two components were refined using the tools available in SHELXL97(Sheldrick, 2008): PART, SAME and EADP. In the first step of
the occupancy factor for each domain has been determined to be in the ration 0.72/0.28 by using the FREE variable option.Data collection: CAD-4 EXPRESS (Duisenberg, 1992; Macíček & Yordanov, 1992); cell
CAD-4 EXPRESS (Duisenberg, 1992; Macíček & Yordanov, 1992); 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: PLATON (Spek, 2009) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: WinGX (Farrugia, 1999).(C5H7N2)2[MnCl2(H2O)2]Cl2 | F(000) = 426 |
Mr = 421.01 | Dx = 1.572 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 25 reflections |
a = 3.946 (1) Å | θ = 10–15° |
b = 17.586 (6) Å | µ = 1.35 mm−1 |
c = 12.845 (4) Å | T = 298 K |
β = 93.48 (3)° | Prism, colourless |
V = 889.7 (5) Å3 | 0.05 × 0.04 × 0.02 mm |
Z = 2 |
Enraf–Nonius CAD-4 diffractometer | 1473 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.017 |
Graphite monochromator | θmax = 27.0°, θmin = 2.3° |
non–profiled ω/2θ scans | h = −5→1 |
Absorption correction: ψ scan (North et al., 1968) | k = 0→22 |
Tmin = 0.916, Tmax = 0.999 | l = −16→16 |
2516 measured reflections | 2 standard reflections every 120 min |
1892 independent reflections | intensity decay: 1% |
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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.095 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0506P)2 + 0.1303P] where P = (Fo2 + 2Fc2)/3 |
1892 reflections | (Δ/σ)max = 0.001 |
112 parameters | Δρmax = 0.38 e Å−3 |
43 restraints | Δρmin = −0.45 e Å−3 |
(C5H7N2)2[MnCl2(H2O)2]Cl2 | V = 889.7 (5) Å3 |
Mr = 421.01 | Z = 2 |
Monoclinic, P21/c | Mo Kα radiation |
a = 3.946 (1) Å | µ = 1.35 mm−1 |
b = 17.586 (6) Å | T = 298 K |
c = 12.845 (4) Å | 0.05 × 0.04 × 0.02 mm |
β = 93.48 (3)° |
Enraf–Nonius CAD-4 diffractometer | 1473 reflections with I > 2σ(I) |
Absorption correction: ψ scan (North et al., 1968) | Rint = 0.017 |
Tmin = 0.916, Tmax = 0.999 | 2 standard reflections every 120 min |
2516 measured reflections | intensity decay: 1% |
1892 independent reflections |
R[F2 > 2σ(F2)] = 0.036 | 43 restraints |
wR(F2) = 0.095 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.38 e Å−3 |
1892 reflections | Δρmin = −0.45 e Å−3 |
112 parameters |
Experimental. Refinement of F^2^ against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F^2^, conventional R-factors R are based on F, with F set to zero for negative F^2^. The threshold expression of F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F^2^ are statistically about twice as large as those based on F, and R– factors based on ALL data will be even larger. |
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 | Occ. (<1) | |
Mn1 | 0.5000 | 0.5000 | 1.0000 | 0.03113 (15) | |
Cl1 | 0.05805 (18) | 0.09651 (5) | 0.82588 (5) | 0.0535 (2) | |
Cl2 | −0.01007 (15) | 0.40847 (3) | 0.95374 (5) | 0.03833 (17) | |
O1 | 0.4739 (4) | 0.54280 (11) | 0.84390 (13) | 0.0451 (5) | |
HW1 | 0.6426 | 0.5601 | 0.8110 | 0.068* | |
HW2 | 0.3186 | 0.5559 | 0.8160 | 0.068* | |
N1 | 0.2765 (11) | 0.2731 (2) | 0.7899 (3) | 0.0640 (10) | 0.72 |
H1A | 0.2411 | 0.2253 | 0.7984 | 0.077* | 0.72 |
H1B | 0.2264 | 0.3050 | 0.8374 | 0.077* | 0.72 |
N2 | 0.6831 (9) | 0.3534 (2) | 0.5246 (3) | 0.0569 (9) | 0.72 |
C1 | 0.4091 (13) | 0.2978 (3) | 0.7031 (3) | 0.0501 (6) | 0.72 |
C2 | 0.4949 (15) | 0.2487 (3) | 0.6239 (4) | 0.0501 (6) | 0.72 |
H2 | 0.4608 | 0.1966 | 0.6298 | 0.060* | 0.72 |
C3 | 0.6292 (14) | 0.2782 (3) | 0.5378 (4) | 0.0501 (6) | 0.72 |
H3 | 0.6869 | 0.2451 | 0.4853 | 0.060* | 0.72 |
C4 | 0.6020 (12) | 0.4012 (3) | 0.6012 (3) | 0.0501 (6) | 0.72 |
H4 | 0.6453 | 0.4528 | 0.5937 | 0.060* | 0.72 |
C5 | 0.4562 (16) | 0.3764 (4) | 0.6909 (5) | 0.0501 (6) | 0.72 |
H5 | 0.3920 | 0.4107 | 0.7412 | 0.060* | 0.72 |
N1' | 0.704 (3) | 0.4342 (5) | 0.5481 (7) | 0.060 (3) | 0.28 |
H1'1 | 0.7695 | 0.4343 | 0.4855 | 0.072* | 0.28 |
H1'2 | 0.6962 | 0.4761 | 0.5824 | 0.072* | 0.28 |
N2' | 0.400 (2) | 0.2381 (5) | 0.6940 (6) | 0.049 (2) | 0.28 |
C1' | 0.614 (3) | 0.3697 (5) | 0.5917 (8) | 0.0483 (15) | 0.28 |
C2' | 0.619 (4) | 0.3023 (5) | 0.5432 (10) | 0.0483 (15) | 0.28 |
H2' | 0.6893 | 0.2985 | 0.4756 | 0.058* | 0.28 |
C3' | 0.517 (4) | 0.2379 (6) | 0.5971 (8) | 0.0483 (15) | 0.28 |
H3' | 0.5299 | 0.1912 | 0.5635 | 0.058* | 0.28 |
C4' | 0.377 (3) | 0.3078 (5) | 0.7366 (9) | 0.0483 (15) | 0.28 |
H4' | 0.2683 | 0.3122 | 0.7986 | 0.058* | 0.28 |
C5' | 0.507 (4) | 0.3743 (10) | 0.6929 (12) | 0.0483 (15) | 0.28 |
H5' | 0.5207 | 0.4197 | 0.7301 | 0.058* | 0.28 |
U11 | U22 | U33 | U12 | U13 | U23 | |
Mn1 | 0.0294 (3) | 0.0381 (3) | 0.0263 (2) | 0.0004 (2) | 0.00499 (18) | 0.00265 (19) |
Cl1 | 0.0426 (4) | 0.0783 (5) | 0.0402 (3) | −0.0008 (3) | 0.0075 (3) | −0.0189 (3) |
Cl2 | 0.0326 (3) | 0.0375 (3) | 0.0455 (3) | 0.0002 (2) | 0.0071 (2) | −0.0063 (2) |
O1 | 0.0335 (9) | 0.0706 (13) | 0.0317 (9) | 0.0022 (9) | 0.0050 (7) | 0.0172 (8) |
N1 | 0.086 (3) | 0.061 (2) | 0.0471 (19) | −0.003 (2) | 0.0207 (19) | 0.0011 (17) |
N2 | 0.051 (2) | 0.078 (3) | 0.0413 (19) | 0.0024 (19) | 0.0022 (16) | 0.0057 (18) |
C1 | 0.0557 (14) | 0.0510 (11) | 0.0435 (11) | 0.0032 (12) | 0.0032 (10) | −0.0060 (10) |
C2 | 0.0557 (14) | 0.0510 (11) | 0.0435 (11) | 0.0032 (12) | 0.0032 (10) | −0.0060 (10) |
C3 | 0.0557 (14) | 0.0510 (11) | 0.0435 (11) | 0.0032 (12) | 0.0032 (10) | −0.0060 (10) |
C4 | 0.0557 (14) | 0.0510 (11) | 0.0435 (11) | 0.0032 (12) | 0.0032 (10) | −0.0060 (10) |
C5 | 0.0557 (14) | 0.0510 (11) | 0.0435 (11) | 0.0032 (12) | 0.0032 (10) | −0.0060 (10) |
N1' | 0.094 (8) | 0.049 (5) | 0.038 (4) | −0.017 (5) | 0.002 (5) | −0.003 (4) |
N2' | 0.052 (5) | 0.050 (5) | 0.045 (5) | 0.000 (4) | 0.005 (4) | −0.004 (4) |
C1' | 0.052 (3) | 0.040 (3) | 0.052 (3) | 0.008 (2) | −0.002 (3) | −0.018 (3) |
C2' | 0.052 (3) | 0.040 (3) | 0.052 (3) | 0.008 (2) | −0.002 (3) | −0.018 (3) |
C3' | 0.052 (3) | 0.040 (3) | 0.052 (3) | 0.008 (2) | −0.002 (3) | −0.018 (3) |
C4' | 0.052 (3) | 0.040 (3) | 0.052 (3) | 0.008 (2) | −0.002 (3) | −0.018 (3) |
C5' | 0.052 (3) | 0.040 (3) | 0.052 (3) | 0.008 (2) | −0.002 (3) | −0.018 (3) |
Mn1—O1i | 2.1383 (17) | C3—H3 | 0.9300 |
Mn1—O1 | 2.1383 (17) | C4—C5 | 1.389 (7) |
Mn1—Cl2ii | 2.6117 (8) | C4—H4 | 0.9300 |
Mn1—Cl2iii | 2.6117 (8) | C5—H5 | 0.9300 |
Mn1—Cl2 | 2.6173 (8) | N1'—C1' | 1.323 (11) |
Mn1—Cl2i | 2.6173 (8) | N1'—H1'1 | 0.8600 |
Cl2—Mn1iv | 2.6117 (8) | N1'—H1'2 | 0.8600 |
O1—HW1 | 0.8654 | N2'—C4' | 1.348 (10) |
O1—HW2 | 0.7285 | N2'—C3' | 1.353 (10) |
N1—C1 | 1.332 (5) | C1'—C2' | 1.339 (11) |
N1—H1A | 0.8600 | C1'—C5' | 1.393 (13) |
N1—H1B | 0.8600 | C2'—C3' | 1.400 (12) |
N2—C4 | 1.348 (5) | C2'—H2' | 0.9300 |
N2—C3 | 1.351 (6) | C3'—H3' | 0.9300 |
C1—C2 | 1.392 (6) | C4'—C5' | 1.408 (13) |
C1—C5 | 1.405 (8) | C4'—H4' | 0.9300 |
C2—C3 | 1.359 (6) | C5'—H5' | 0.9300 |
C2—H2 | 0.9300 | ||
O1i—Mn1—O1 | 180.000 (1) | N2—C3—C2 | 123.2 (4) |
O1i—Mn1—Cl2ii | 90.13 (6) | N2—C3—H3 | 118.4 |
O1—Mn1—Cl2ii | 89.87 (6) | C2—C3—H3 | 118.4 |
O1i—Mn1—Cl2iii | 89.87 (6) | N2—C4—C5 | 122.6 (5) |
O1—Mn1—Cl2iii | 90.13 (6) | N2—C4—H4 | 118.7 |
Cl2ii—Mn1—Cl2iii | 180.0 | C5—C4—H4 | 118.7 |
O1i—Mn1—Cl2 | 89.37 (6) | C4—C5—C1 | 117.8 (6) |
O1—Mn1—Cl2 | 90.63 (6) | C4—C5—H5 | 121.1 |
Cl2ii—Mn1—Cl2 | 97.99 (3) | C1—C5—H5 | 121.1 |
Cl2iii—Mn1—Cl2 | 82.01 (3) | C1'—N1'—H1'1 | 120.0 |
O1i—Mn1—Cl2i | 90.63 (6) | C1'—N1'—H1'2 | 120.0 |
O1—Mn1—Cl2i | 89.37 (6) | H1'1—N1'—H1'2 | 120.0 |
Cl2ii—Mn1—Cl2i | 82.01 (3) | C4'—N2'—C3' | 114.4 (10) |
Cl2iii—Mn1—Cl2i | 97.99 (3) | N1'—C1'—C2' | 123.4 (12) |
Cl2—Mn1—Cl2i | 180.00 (2) | N1'—C1'—C5' | 116.6 (10) |
Mn1iv—Cl2—Mn1 | 97.99 (3) | C2'—C1'—C5' | 120.0 (13) |
Mn1—O1—HW1 | 126.0 | C1'—C2'—C3' | 118.3 (12) |
Mn1—O1—HW2 | 124.3 | C1'—C2'—H2' | 120.9 |
HW1—O1—HW2 | 107.3 | C3'—C2'—H2' | 120.9 |
C1—N1—H1A | 120.0 | N2'—C3'—C2' | 125.2 (10) |
C1—N1—H1B | 120.0 | N2'—C3'—H3' | 117.4 |
H1A—N1—H1B | 120.0 | C2'—C3'—H3' | 117.4 |
C4—N2—C3 | 118.2 (4) | N2'—C4'—C5' | 123.9 (13) |
N1—C1—C2 | 122.3 (5) | N2'—C4'—H4' | 118.0 |
N1—C1—C5 | 118.4 (5) | C5'—C4'—H4' | 118.0 |
C2—C1—C5 | 119.3 (5) | C1'—C5'—C4' | 117.5 (14) |
C3—C2—C1 | 118.8 (5) | C1'—C5'—H5' | 121.3 |
C3—C2—H2 | 120.6 | C4'—C5'—H5' | 121.3 |
C1—C2—H2 | 120.6 |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) x+1, y, z; (iii) −x, −y+1, −z+2; (iv) x−1, y, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—HW1···Cl1v | 0.87 | 2.27 | 3.090 (2) | 158 |
O1—HW2···Cl1vi | 0.73 | 2.39 | 3.082 (2) | 159 |
N1—H1A···Cl1 | 0.86 | 2.41 | 3.264 (4) | 172 |
N1—H1B···Cl2 | 0.86 | 2.57 | 3.415 (4) | 169 |
N1′—H1′1···Cl1vii | 0.86 | 2.47 | 3.299 (10) | 163 |
N1′—H1′2···Cl1v | 0.86 | 2.58 | 3.386 (9) | 156 |
Symmetry codes: (v) −x+1, y+1/2, −z+3/2; (vi) −x, y+1/2, −z+3/2; (vii) x+1, −y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | (C5H7N2)2[MnCl2(H2O)2]Cl2 |
Mr | 421.01 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 3.946 (1), 17.586 (6), 12.845 (4) |
β (°) | 93.48 (3) |
V (Å3) | 889.7 (5) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.35 |
Crystal size (mm) | 0.05 × 0.04 × 0.02 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 diffractometer |
Absorption correction | ψ scan (North et al., 1968) |
Tmin, Tmax | 0.916, 0.999 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2516, 1892, 1473 |
Rint | 0.017 |
(sin θ/λ)max (Å−1) | 0.638 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.095, 1.04 |
No. of reflections | 1892 |
No. of parameters | 112 |
No. of restraints | 43 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.38, −0.45 |
Computer programs: CAD-4 EXPRESS (Duisenberg, 1992; Macíček & Yordanov, 1992), XCAD4 (Harms & Wocadlo, 1995), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009) and DIAMOND (Brandenburg, 2006), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—HW1···Cl1i | 0.87 | 2.27 | 3.090 (2) | 158.4 |
O1—HW2···Cl1ii | 0.73 | 2.39 | 3.082 (2) | 159.3 |
N1—H1A···Cl1 | 0.86 | 2.41 | 3.264 (4) | 171.7 |
N1—H1B···Cl2 | 0.86 | 2.57 | 3.415 (4) | 169.3 |
N1'—H1'1···Cl1iii | 0.86 | 2.47 | 3.299 (10) | 163.4 |
N1'—H1'2···Cl1i | 0.86 | 2.58 | 3.386 (9) | 155.8 |
Symmetry codes: (i) −x+1, y+1/2, −z+3/2; (ii) −x, y+1/2, −z+3/2; (iii) x+1, −y+1/2, z−1/2. |
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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.
Studies of organic-inorganic hybrid compounds continue to be a focus area in chemistry and material science because they combine properties of organic and inorganic compounds within one single molecular scale, such as second order nonlinear optical (NLO) response, magnetism, luminescence, and even multifunctional properties (Mitzi et al. (2001); Lacroix et al. (1994)).
This kind of materials, generally expressed as (R—NH3)2-MX4 or (NH3– R—NH3) MX4 (where R: organic group, M: divalent metal and X: halogen) can be regarded as semiconductor/insulator multiple quantum well system consisting of metal halide semiconductor layers sandwiched between organic ammonium insulator layers (Calabrese et al. (1991); Hong et al. (1992). In this paper, we report the synthesis and single-crystal X-ray diffraction studies of the organic-inorganic hybrid compound: [MnCl2(H2O)2].(C5H8N2)2.Cl2.
The assymetric unit is built up from a MnCl(H2O) moiety, a fully disordered 4-ammoniumpyridine and a Cl ion. The Mn atom is located on an inversion center and each managanese atom is octahedrally coordinated to four equatorial chlorine atoms and to two oxygen atoms in axial positions (Fig. 1).
The [MnCl2(H2O)2].(C5H8N2)2.Cl2 structure is built up of infinite edges sharing octahedra MnCl4(H2O)2 chains running along the [100] direction. Similar arrangement of the inorganic part was reported for [(CH3)3NH]MnCl3. 2H2O published by Caputo et al. (1976). The organic-inorganic cohesion is ensured by hydrogen bonding that involves two kinds of interactions: N1—H1A···Cl1 and N1—H1B···Cl2 bonds between the organic cation and the chloride and O—HW1···Cl1 and O—HW2···Cl1 between the water molecule and the Cl anion (Fig. 2, Table 1). It is worthy to note that the second kind of hydrogene bonds are stronger than the first one.
The [C5H8N2]+cations is disordered over two positions which are rotated with respect to each other by about 141°. Thus, the amine group of one component lies close to the carbon atom C1 of the other component so that both components are more or less coplanar one to another (Fig. 3).
The distances and angles througout the structure are in good agreement with those encountered in several compounds of literature (Zeng et al. (2008); Hachuła et al. (2009)).