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Acta Cryst. (2008). E64, m1273-m1274    [ doi:10.1107/S1600536808028912 ]

catena-Poly[[manganese(II)-tris([mu]-betaine-[kappa]2O:O')] tetrabromidomanganate(IV)

M. Kocadag, M. Fleck and L. Bohatý

Abstract top

The title compound, [Mn(C5H11NO2)3]·MnBr4, contains polymeric cationic chains of distorted MnO6 octahedra and bridging betaine molecules, running parallel to the a axis. There are two distinct Mn2+ cations in the chain, both with site symmetry \overline{1}. Distorted [MnBr4]2- tetrahedra occupy the spaces between the chains.

Comment top

The physical properties of compounds of metal salts with the zwitterionic ligand betaine have been investigated intensively in the past (Haussühl & Schreuer, 2001; Haussühl & Wang, 1989; Haussühl, 1989; Haussühl, 1988; Wang et al., 1986; Chen & Mak, 1994, and references therein).

In particular, the low-dimensional magnetic properties of the isomorphic trigonal group of betaine manganese metal chlorides [(C5H11NO2)3Mn].MCl4 (M = Mn, Co, Zn, space group P3) has been analysed in detail (Wiehl et al., 2006b). In these crystals, the betaine ligands operate as µ-(O,O') bridges between Mn2+ cations thus forming chains of the octahedrally coordinated mangnetic cations (S = 5/2). A model of an antiferromagnetic Heisenberg spin fits well the magnetic proerties of these crystals (Wiehl et al., 2006b).

Here, we present the crystal structure of the title compound, (I) (Fig. 1). The crystal structure of (I) contains three crystallographically non-equivalent mangenese atoms. Two of them, Mn1 and Mn2, located on centres of inversion, are sixfold coordinated by oxygen atoms of the carboxylate groups of betaine molecules, which act as bridging ligands to form an one-dimensional tris(carboxylato-O,O')-bridged Mn2+ complex (Table 1). The cationic chains are oriented along the a axis and possess approximately the rod symmetry P3 (Fig. 2). In the interstices between these chains, anionic distorted tetrahedral groups [Mn(3)Br4]2- are located.

Apart from the triclinic symmetry, the structural features of (I) are analogous to those of the trigonal chlorides [(C5H11NO2)3Mn].MCl4 [M = Mn (Chen & Mak, 1991; Schreuer & Haussühl, 1993), Co (Wiehl et al., 2006a) and Zn (Wiehl et al., 2006b)]. The type of structural units [(C5H11NO2)3Mn]∞ and [MnBr4], and the structural packing of these chains and tetrahedra are analogous to the atomic arrangement in the structure of the chloride compounds. Both, the translation period in the direction of the chain axis [a in (I), c ≈ 9.08 Å in the chloride compounds] as well as the interchain distances [b and c in (I), a = b ≈ 12.8 Å in the chloride compounds] correspond well. The interatomic distances and angles within the betaine molecules agree well with the values given in the literature (Viertorinne et al., 1999; Mak, 1990), the carboxylate C—O distances indicate the delocalization of the electrons to a mesomeric state [C—O-distances range from 1.245 (5) to 1.255 (5) Å].

Related literature top

For related literature, see: Chen & Mak (1994); Haussühl (1988, 1989); Haussühl & Schreuer (2001); Haussühl & Wang (1989); Mak (1990); Viertorinne et al. (1999); Wang et al. (1986); Wiehl et al. (2006a,b)); Chen & Mak (1991); Schreuer & Haussühl (1993).

Experimental top

The title compound crystallizes from 3:2 stoichiometry aqueous solutions of betaine and MnBr2 in the temperature range 290 to 300 K in thick tabular prismatic crystals of sulfur-yellow colour. Crystals of optical quality with dimensions up to 25 × 7 × 3 mm were grown from a solution of 167 g betaine and 272 g MnBr2.4H2O by very slow evaporation at 295 K during a period of 11 months.

Computing details top

Data collection: SMART (Bruker, 2004); cell refinement: SMART (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Bergerhoff et al., 1996); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).

Figures top
[Figure 1] Fig. 1. The asymmetric unit of (I), shown with displacement ellipsoids at the 50% probability level. Hydrogen atoms are omitted for clarity.
[Figure 2] Fig. 2. Packing diagram for (I) (left) in comparison with the structure of ([(betaine)3Mn](MCl4)] (Wiehl et al., 2006a, right), viewed along and perpendicular to the chains (top and bottom). Hydrogen atoms are omitted for clarity.
catena-Poly[[manganese(II)-tris(µ-betaine-κ2O:O')] tetrabromidomanganese(IV)] top
Crystal data top
[Mn(C5H11NO2)3]·MnBr4Z = 2
Mr = 780.96F(000) = 764
Triclinic, P1Dx = 1.897 Mg m−3
Hall symbol: -P 1Melting point: not determined K
a = 9.140 (2) ÅMo Kα radiation, λ = 0.71073 Å
b = 12.700 (2) ÅCell parameters from 1294 reflections
c = 12.871 (3) Åθ = 2.8–26.4°
α = 66.557 (6)°µ = 6.80 mm−1
β = 86.063 (7)°T = 293 K
γ = 89.249 (7)°Prism, yellow
V = 1367.3 (4) Å30.50 × 0.30 × 0.30 mm
Data collection top
Bruker SMART CCD
diffractometer		7836 independent reflections
Radiation source: fine-focus sealed tube5085 reflections with I > 2σ(I)
graphiteRint = 0.030
Detector resolution: 0.1 pixels mm-1θmax = 30°, θmin = 1.8°
φ–scan and ω–scansh = −13→13
Absorption correction: multi-scan
(Otwinowski & Minor, 1997)		k = −18→18
Tmin = 0.073, Tmax = 0.130l = −15→18
17423 measured reflections
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.054H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.115 w = 1/[σ2(Fo2) + (0.0151P)2 + 6.4946P]
where P = (Fo2 + 2Fc2)/3
S = 1.05(Δ/σ)max < 0.001
7836 reflectionsΔρmax = 1.77 e Å−3
326 parametersΔρmin = −1.88 e Å−3
0 restraintsExtinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.0015 (3)
Crystal data top
[Mn(C5H11NO2)3]·MnBr4γ = 89.249 (7)°
Mr = 780.96V = 1367.3 (4) Å3
Triclinic, P1Z = 2
a = 9.140 (2) ÅMo Kα radiation
b = 12.700 (2) ŵ = 6.80 mm−1
c = 12.871 (3) ÅT = 293 K
α = 66.557 (6)°0.50 × 0.30 × 0.30 mm
β = 86.063 (7)°
Data collection top
Bruker SMART CCD
diffractometer		7836 independent reflections
Absorption correction: multi-scan
(Otwinowski & Minor, 1997)		5085 reflections with I > 2σ(I)
Tmin = 0.073, Tmax = 0.130Rint = 0.030
17423 measured reflectionsθmax = 30°
Refinement top
R[F2 > 2σ(F2)] = 0.054H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.115Δρmax = 1.77 e Å−3
S = 1.05Δρmin = −1.88 e Å−3
7836 reflectionsAbsolute structure: ?
326 parametersFlack parameter: ?
0 restraintsRogers parameter: ?
Special details top

Experimental. Single-crystal X-ray intensity data were collected at 293 K on a Nonius APEXII diffractometer with CCD-area detector, using 673 frames with phi- and omega-increments of 1 degree and a counting time of 60 s per frame. The crystal-to-detector-distance was 30 mm. The whole ewald sphere was measured. The reflection data were processed with the Nonius program suite DENZO-SMN and corrected for Lorentz, polarization, background and absorption effects (Otwinowski and Minor, 1997). The crystal structure was determined by Direct methods (SHELXS97, Sheldrick, 2008) and subsequent Fourier and difference Fourier syntheses, followed by full-matrix least-squares refinements on F2 (SHELXL97, Sheldrick, 2008). All hydrogen atoms were treated as riding. Using anisotropic treatment of the non-H atoms and unrestrained isotropic treatment of the H atoms, the refinement converged at an R-value of 0.053.

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Mn11.00000.00001.00000.0226 (2)
Mn20.50000.00001.00000.0234 (2)
Mn30.77120 (8)0.62332 (7)0.69412 (7)0.0388 (2)
Br10.72670 (6)0.62971 (5)0.88548 (5)0.04926 (17)
Br20.73289 (7)0.43013 (5)0.69615 (7)0.05729 (19)
Br31.03439 (7)0.68376 (6)0.62887 (6)0.05688 (19)
Br40.60829 (11)0.76456 (8)0.56062 (8)0.0922 (3)
O1A0.1462 (3)0.1052 (3)0.8505 (3)0.0338 (8)
O2A0.3773 (3)0.0449 (3)0.8480 (3)0.0301 (7)
C1A0.2801 (4)0.1200 (4)0.8221 (4)0.0256 (9)
C2A0.3415 (5)0.2387 (4)0.7460 (6)0.0372 (12)
H2A10.426 (6)0.258 (5)0.781 (5)0.046 (16)*
H2A20.375 (7)0.234 (5)0.682 (6)0.06 (2)*
N3A0.2438 (4)0.3404 (3)0.7206 (4)0.0366 (10)
C4A0.1914 (11)0.3524 (6)0.8271 (7)0.082 (3)
H4A10.12030.41220.81060.10 (3)*
H4A20.27280.37150.86000.13 (4)*
H4A30.14720.28130.87970.11 (3)*
C5A0.3320 (7)0.4447 (5)0.6441 (8)0.068 (2)
H5A10.32960.45280.56680.17 (5)*
H5A20.43160.43640.66500.11 (3)*
H5A30.29120.51160.65150.09 (3)*
C6A0.1167 (7)0.3324 (6)0.6576 (7)0.067 (2)
H6A10.08020.40780.61660.08 (2)*
H6A20.04060.28570.71040.10 (3)*
H6A30.14740.29840.60530.14 (4)*
O1B0.8835 (3)−0.0491 (3)0.8839 (3)0.0326 (7)
O2B0.6524 (3)−0.1059 (3)0.9500 (3)0.0333 (7)
C1B0.7526 (4)−0.0671 (3)0.8728 (4)0.0265 (9)
C2B0.7027 (6)−0.0439 (5)0.7562 (5)0.0423 (13)
H2B10.718 (5)−0.112 (5)0.743 (5)0.036 (14)*
H2B20.601 (8)−0.024 (6)0.750 (7)0.08 (2)*
N3B0.7830 (4)0.0477 (3)0.6558 (4)0.0329 (9)
C4B0.9394 (6)0.0214 (7)0.6382 (6)0.0612 (19)
H4B10.9462−0.05410.63820.11 (3)*
H4B20.99340.02460.69830.10 (3)*
H4B30.97980.07670.56670.08 (2)*
C5B0.7081 (8)0.0607 (7)0.5518 (6)0.069 (2)
H5B10.75600.12070.48680.07 (2)*
H5B20.60730.07990.56020.10 (3)*
H5B30.7131−0.01010.54150.12 (4)*
C6B0.7741 (9)0.1589 (5)0.6699 (6)0.0625 (19)
H6B10.83020.21670.60830.07 (2)*
H6B20.81280.14960.74050.08 (2)*
H6B30.67360.18170.67010.14 (4)*
O1C0.6456 (3)0.1430 (3)0.9163 (3)0.0290 (7)
O2C0.8693 (3)0.1519 (3)0.9718 (3)0.0323 (7)
C1C0.7365 (4)0.1769 (3)0.9644 (4)0.0248 (9)
C2C0.6737 (5)0.2597 (4)1.0147 (5)0.0322 (11)
H2C10.668 (6)0.336 (5)0.954 (5)0.041 (15)*
H2C20.579 (5)0.235 (4)1.044 (4)0.030 (13)*
N3C0.7558 (4)0.2747 (3)1.1054 (4)0.0313 (9)
C4C0.6680 (6)0.3497 (5)1.1501 (6)0.0476 (14)
H4C10.57490.31341.18290.06 (2)*
H4C20.65280.42231.08910.06 (2)*
H4C30.72000.36151.20700.061 (19)*
C5C0.7746 (7)0.1616 (5)1.2014 (5)0.0526 (15)
H5C10.83230.11271.17450.062 (19)*
H5C20.68020.12651.23160.08 (2)*
H5C30.82360.17311.25980.07 (2)*
C6C0.9027 (6)0.3312 (5)1.0602 (6)0.0526 (16)
H6C10.95680.33001.12190.09 (3)*
H6C20.88970.40931.00860.08 (2)*
H6C30.95570.29071.02090.063 (19)*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Mn10.0179 (4)0.0249 (4)0.0249 (5)0.0018 (3)−0.0021 (3)−0.0098 (4)
Mn20.0181 (4)0.0239 (4)0.0285 (6)0.0012 (3)−0.0028 (3)−0.0106 (4)
Mn30.0387 (4)0.0352 (4)0.0424 (5)0.0046 (3)−0.0074 (3)−0.0146 (4)
Br10.0429 (3)0.0614 (4)0.0466 (4)0.0068 (2)−0.0049 (2)−0.0247 (3)
Br20.0566 (4)0.0403 (3)0.0771 (5)−0.0048 (2)−0.0039 (3)−0.0255 (3)
Br30.0526 (3)0.0688 (4)0.0461 (4)−0.0236 (3)0.0062 (3)−0.0204 (3)
Br40.1235 (7)0.0924 (6)0.0730 (6)0.0703 (5)−0.0529 (5)−0.0408 (5)
O1A0.0239 (15)0.0365 (17)0.033 (2)−0.0015 (12)0.0014 (13)−0.0057 (15)
O2A0.0284 (15)0.0291 (15)0.032 (2)0.0063 (12)−0.0075 (13)−0.0110 (14)
C1A0.0254 (19)0.030 (2)0.021 (2)0.0010 (16)−0.0029 (16)−0.0093 (18)
C2A0.024 (2)0.031 (2)0.049 (4)0.0024 (17)−0.001 (2)−0.007 (2)
N3A0.032 (2)0.0296 (19)0.043 (3)0.0016 (15)−0.0035 (18)−0.0094 (19)
C4A0.142 (8)0.047 (4)0.059 (5)0.013 (4)0.014 (5)−0.027 (4)
C5A0.052 (4)0.031 (3)0.093 (7)−0.007 (2)0.001 (3)0.005 (3)
C6A0.043 (3)0.052 (4)0.087 (6)0.010 (3)−0.031 (3)−0.004 (4)
O1B0.0256 (15)0.0440 (18)0.033 (2)0.0013 (13)−0.0051 (13)−0.0200 (16)
O2B0.0291 (16)0.0305 (16)0.042 (2)0.0028 (12)0.0042 (14)−0.0171 (15)
C1B0.025 (2)0.0241 (19)0.033 (3)0.0046 (15)−0.0050 (17)−0.0139 (19)
C2B0.040 (3)0.046 (3)0.036 (3)−0.013 (2)−0.009 (2)−0.010 (2)
N3B0.033 (2)0.036 (2)0.029 (2)0.0030 (16)−0.0049 (16)−0.0125 (18)
C4B0.049 (3)0.089 (5)0.037 (4)0.026 (3)0.005 (3)−0.018 (4)
C5B0.074 (5)0.077 (5)0.037 (4)−0.018 (4)−0.024 (3)−0.001 (3)
C6B0.095 (5)0.038 (3)0.050 (5)0.003 (3)0.016 (4)−0.016 (3)
O1C0.0289 (15)0.0280 (15)0.029 (2)−0.0044 (12)−0.0020 (13)−0.0105 (13)
O2C0.0261 (15)0.0288 (15)0.045 (2)0.0060 (12)−0.0052 (14)−0.0168 (15)
C1C0.0258 (19)0.0199 (18)0.026 (3)−0.0009 (14)−0.0003 (16)−0.0070 (17)
C2C0.021 (2)0.039 (3)0.042 (3)0.0059 (18)−0.0085 (19)−0.022 (2)
N3C0.0264 (18)0.0337 (19)0.039 (3)0.0031 (15)−0.0048 (16)−0.0196 (18)
C4C0.042 (3)0.059 (4)0.058 (4)0.011 (3)−0.005 (3)−0.040 (3)
C5C0.073 (4)0.044 (3)0.044 (4)0.008 (3)−0.017 (3)−0.019 (3)
C6C0.031 (3)0.060 (4)0.082 (5)−0.011 (2)0.003 (3)−0.044 (4)
Geometric parameters (Å, °) top
Mn1—O2Ci2.173 (3)O2B—C1B1.252 (5)
Mn1—O2C2.173 (3)C1B—C2B1.512 (7)
Mn1—O1B2.176 (3)C2B—N3B1.503 (7)
Mn1—O1Bi2.176 (3)C2B—H2B10.95 (5)
Mn1—O1Aii2.219 (3)C2B—H2B20.96 (7)
Mn1—O1Aiii2.219 (3)N3B—C4B1.487 (6)
Mn2—O1Cii2.131 (3)N3B—C6B1.493 (7)
Mn2—O1C2.131 (3)N3B—C5B1.495 (7)
Mn2—O2B2.163 (3)C4B—H4B10.9600
Mn2—O2Bii2.163 (3)C4B—H4B20.9600
Mn2—O2Aii2.192 (3)C4B—H4B30.9600
Mn2—O2A2.192 (3)C5B—H5B10.9600
Mn3—Br22.4724 (11)C5B—H5B20.9600
Mn3—Br42.4932 (11)C5B—H5B30.9600
Mn3—Br12.5019 (12)C6B—H6B10.9600
Mn3—Br32.5179 (11)C6B—H6B20.9600
O1A—C1A1.247 (5)C6B—H6B30.9600
O2A—C1A1.255 (5)O1C—C1C1.245 (5)
C1A—C2A1.522 (6)O2C—C1C1.251 (5)
C2A—N3A1.499 (6)C1C—C2C1.527 (6)
C2A—H2A11.00 (6)C2C—N3C1.505 (6)
C2A—H2A20.89 (7)C2C—H2C10.97 (6)
N3A—C4A1.485 (8)C2C—H2C20.92 (5)
N3A—C6A1.488 (7)N3C—C5C1.493 (7)
N3A—C5A1.502 (7)N3C—C4C1.495 (6)
C4A—H4A10.9600N3C—C6C1.497 (6)
C4A—H4A20.9600C4C—H4C10.9600
C4A—H4A30.9600C4C—H4C20.9600
C5A—H5A10.9600C4C—H4C30.9600
C5A—H5A20.9600C5C—H5C10.9600
C5A—H5A30.9600C5C—H5C20.9600
C6A—H6A10.9600C5C—H5C30.9600
C6A—H6A20.9600C6C—H6C10.9600
C6A—H6A30.9600C6C—H6C20.9600
O1B—C1B1.249 (5)C6C—H6C30.9600
O2Ci—Mn1—O2C180.0C1B—O1B—Mn1135.7 (3)
O2Ci—Mn1—O1B86.19 (12)C1B—O2B—Mn2124.0 (3)
O2C—Mn1—O1B93.81 (12)O1B—C1B—O2B127.1 (5)
O2Ci—Mn1—O1Bi93.81 (12)O1B—C1B—C2B119.7 (4)
O2C—Mn1—O1Bi86.19 (12)O2B—C1B—C2B113.1 (4)
O1B—Mn1—O1Bi180.0N3B—C2B—C1B117.9 (4)
O2Ci—Mn1—O1Aii88.25 (12)N3B—C2B—H2B1104 (3)
O2C—Mn1—O1Aii91.75 (12)C1B—C2B—H2B1107 (3)
O1B—Mn1—O1Aii93.30 (13)N3B—C2B—H2B2105 (5)
O1Bi—Mn1—O1Aii86.70 (13)C1B—C2B—H2B2113 (5)
O2Ci—Mn1—O1Aiii91.75 (12)H2B1—C2B—H2B2109 (5)
O2C—Mn1—O1Aiii88.25 (12)C4B—N3B—C6B109.3 (5)
O1B—Mn1—O1Aiii86.70 (13)C4B—N3B—C5B107.8 (5)
O1Bi—Mn1—O1Aiii93.30 (13)C6B—N3B—C5B108.5 (5)
O1Aii—Mn1—O1Aiii180.0C4B—N3B—C2B113.8 (4)
O1Cii—Mn2—O1C180.0C6B—N3B—C2B109.1 (4)
O1Cii—Mn2—O2B90.79 (12)C5B—N3B—C2B108.2 (4)
O1C—Mn2—O2B89.21 (12)N3B—C4B—H4B1109.5
O1Cii—Mn2—O2Bii89.21 (12)N3B—C4B—H4B2109.5
O1C—Mn2—O2Bii90.79 (12)H4B1—C4B—H4B2109.5
O2B—Mn2—O2Bii180.0N3B—C4B—H4B3109.5
O1Cii—Mn2—O2Aii91.45 (12)H4B1—C4B—H4B3109.5
O1C—Mn2—O2Aii88.55 (12)H4B2—C4B—H4B3109.5
O2B—Mn2—O2Aii86.67 (12)N3B—C5B—H5B1109.5
O2Bii—Mn2—O2Aii93.33 (12)N3B—C5B—H5B2109.5
O1Cii—Mn2—O2A88.55 (12)H5B1—C5B—H5B2109.5
O1C—Mn2—O2A91.45 (12)N3B—C5B—H5B3109.5
O2B—Mn2—O2A93.33 (12)H5B1—C5B—H5B3109.5
O2Bii—Mn2—O2A86.67 (12)H5B2—C5B—H5B3109.5
O2Aii—Mn2—O2A180.0N3B—C6B—H6B1109.5
Br2—Mn3—Br4110.42 (4)N3B—C6B—H6B2109.5
Br2—Mn3—Br1113.26 (4)H6B1—C6B—H6B2109.5
Br4—Mn3—Br1108.64 (4)N3B—C6B—H6B3109.5
Br2—Mn3—Br3108.51 (4)H6B1—C6B—H6B3109.5
Br4—Mn3—Br3108.99 (5)H6B2—C6B—H6B3109.5
Br1—Mn3—Br3106.89 (4)C1C—O1C—Mn2124.6 (3)
C1A—O1A—Mn1iv138.8 (3)C1C—O2C—Mn1136.7 (3)
C1A—O2A—Mn2123.0 (3)O1C—C1C—O2C126.7 (4)
O1A—C1A—O2A127.0 (4)O1C—C1C—C2C113.7 (4)
O1A—C1A—C2A120.5 (4)O2C—C1C—C2C119.5 (4)
O2A—C1A—C2A112.5 (4)N3C—C2C—C1C117.5 (4)
N3A—C2A—C1A119.0 (4)N3C—C2C—H2C1106 (3)
N3A—C2A—H2A1104 (3)C1C—C2C—H2C1109 (3)
C1A—C2A—H2A1110 (3)N3C—C2C—H2C2108 (3)
N3A—C2A—H2A2110 (4)C1C—C2C—H2C2108 (3)
C1A—C2A—H2A2106 (4)H2C1—C2C—H2C2108 (4)
H2A1—C2A—H2A2108 (5)C5C—N3C—C4C108.2 (5)
C4A—N3A—C6A110.1 (6)C5C—N3C—C6C109.6 (4)
C4A—N3A—C2A110.4 (5)C4C—N3C—C6C108.0 (4)
C6A—N3A—C2A111.7 (5)C5C—N3C—C2C110.5 (4)
C4A—N3A—C5A110.2 (6)C4C—N3C—C2C108.4 (4)
C6A—N3A—C5A106.9 (5)C6C—N3C—C2C112.0 (4)
C2A—N3A—C5A107.4 (4)N3C—C4C—H4C1109.5
N3A—C4A—H4A1109.5N3C—C4C—H4C2109.5
N3A—C4A—H4A2109.5H4C1—C4C—H4C2109.5
H4A1—C4A—H4A2109.5N3C—C4C—H4C3109.5
N3A—C4A—H4A3109.5H4C1—C4C—H4C3109.5
H4A1—C4A—H4A3109.5H4C2—C4C—H4C3109.5
H4A2—C4A—H4A3109.5N3C—C5C—H5C1109.5
N3A—C5A—H5A1109.5N3C—C5C—H5C2109.5
N3A—C5A—H5A2109.5H5C1—C5C—H5C2109.5
H5A1—C5A—H5A2109.5N3C—C5C—H5C3109.5
N3A—C5A—H5A3109.5H5C1—C5C—H5C3109.5
H5A1—C5A—H5A3109.5H5C2—C5C—H5C3109.5
H5A2—C5A—H5A3109.5N3C—C6C—H6C1109.5
N3A—C6A—H6A1109.5N3C—C6C—H6C2109.5
N3A—C6A—H6A2109.5H6C1—C6C—H6C2109.5
H6A1—C6A—H6A2109.5N3C—C6C—H6C3109.5
N3A—C6A—H6A3109.5H6C1—C6C—H6C3109.5
H6A1—C6A—H6A3109.5H6C2—C6C—H6C3109.5
H6A2—C6A—H6A3109.5
Symmetry codes: (i) −x+2, −y, −z+2; (ii) −x+1, −y, −z+2; (iii) x+1, y, z; (iv) x−1, y, z.
Table 1
Selected geometric parameters (Å) top
Mn1—O2C2.173 (3)Mn2—O2A2.192 (3)
Mn1—O1B2.176 (3)Mn3—Br22.4724 (11)
Mn1—O1Ai2.219 (3)Mn3—Br42.4932 (11)
Mn2—O1C2.131 (3)Mn3—Br12.5019 (12)
Mn2—O2B2.163 (3)Mn3—Br32.5179 (11)
Symmetry codes: (i) x+1, y, z.
Acknowledgements top

The author thanks the International Centre for Diffraction Data for financial assistance of this work (grant No. 90-03 ET).

references
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