metal-organic compounds
Di-μ-aqua-bis[diaquabis(thiocyanato-κN)iron(II)] 4-(4-chlorophenyl)-1,2,4-triazole hexasolvate
aCollege of Chemistry, Chifeng University, Inner Mongolia 024000, People's Republic of China, and bCollege of Science, Inner Mongolia Agricultural University, Inner Mongolia 010018, People's Republic of China
*Correspondence e-mail: yazoe@mail.nankai.edu.cn
The title complex, [Fe2(NCS)4(H2O)6]·6C8H6ClN3, comprises two distorted octahedral iron(II) centers straddling a crystallographic inversion center and bridged by two aqua O atoms to form a quadrilateral core. The aqua O atom of the core is involved in hydrogen bonds with the triazole N atoms of the solvent molecules, generating one-dimensional ladder motifs, and three intermolecular C—H⋯S hydrogen bonds, forming a three-dimensional hydrogen-bonding network.
Related literature
For related literature, see: Hsu et al. (1999); MacMurdo et al. (2000); Nordlund & Eklund (1993); Sazinsky et al. (2004); Stubbe & Van der Donk (1998); Yoon et al. (2004); Zheng et al. (1999).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1998); cell SAINT (Bruker, 1998); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL and PLATON (Spek, 2003).
Supporting information
10.1107/S1600536808019326/si2093sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808019326/si2093Isup2.hkl
The compound was synthesized under hydrothermal conditions. A mixture of L (L=1,2,4-triazol-chloro-benzene) (0.3 mmol, 0.0538 g), FeSO4˙7H2O (0.1 mmol, 0.028 g), KSCN (0.2 mmol, 0.019 g) and water (10 mL) was placed in a 25 mL acid digestion bomb and heated at 433 K for two days, then equably cooled to room temperature for three days. After washed by 5 ml water for twice, green block crystals of the compound were obtained.
The water H atoms were located in a Fourier difference map and refined subject to an O—H restraint 0.88 (1)Å and an H···H restraint of 1.42 (2)Å. Other H atoms were allowed to ride on their parent atoms with C—H distances of 0.93 Å (Uiso(H)=1.2Ueq(C)). All of the non-hydrogen atoms were refined anisotropically.
Data collection: SMART (Bruker, 1998); cell
SAINT (Bruker, 1998); data reduction: SAINT (Bruker, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2003).Fig. 1. The structure of the title complex, showing 30% probability displacement ellipsoids and the atom-numbering schemes. H atoms have been omitted for clarity. Atoms of the inversion-related half-complex are indicated with A, symmetry code: (-x + 1, -y, -z + 1). | |
Fig. 2. The three-dimensional structure of the title complex, the chains were drawn in different colors. Dashed lines indicate hydrogen bonds. |
[Fe2(NCS)4(H2O)6]·6C8H6ClN3 | Z = 1 |
Mr = 1529.76 | F(000) = 780 |
Triclinic, P1 | Dx = 1.544 Mg m−3 |
a = 7.944 (3) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 11.085 (5) Å | Cell parameters from 1471 reflections |
c = 19.912 (10) Å | θ = 2.5–22.0° |
α = 105.613 (10)° | µ = 0.88 mm−1 |
β = 97.75 (1)° | T = 298 K |
γ = 97.932 (7)° | Block, green |
V = 1645.1 (12) Å3 | 0.25 × 0.21 × 0.17 mm |
Bruker SMART CCD area-detector diffractometer | 5705 independent reflections |
Radiation source: fine-focus sealed tube | 2903 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.032 |
ϕ and ω scans | θmax = 25.0°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −9→9 |
Tmin = 0.811, Tmax = 0.865 | k = −11→13 |
8642 measured reflections | l = −21→23 |
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)] = 0.044 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.076 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.77 | w = 1/[σ2(Fo2) + (0.0191P)2] where P = (Fo2 + 2Fc2)/3 |
5705 reflections | (Δ/σ)max = 0.002 |
439 parameters | Δρmax = 0.25 e Å−3 |
9 restraints | Δρmin = −0.24 e Å−3 |
[Fe2(NCS)4(H2O)6]·6C8H6ClN3 | γ = 97.932 (7)° |
Mr = 1529.76 | V = 1645.1 (12) Å3 |
Triclinic, P1 | Z = 1 |
a = 7.944 (3) Å | Mo Kα radiation |
b = 11.085 (5) Å | µ = 0.88 mm−1 |
c = 19.912 (10) Å | T = 298 K |
α = 105.613 (10)° | 0.25 × 0.21 × 0.17 mm |
β = 97.75 (1)° |
Bruker SMART CCD area-detector diffractometer | 5705 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2903 reflections with I > 2σ(I) |
Tmin = 0.811, Tmax = 0.865 | Rint = 0.032 |
8642 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 9 restraints |
wR(F2) = 0.076 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.77 | Δρmax = 0.25 e Å−3 |
5705 reflections | Δρmin = −0.24 e Å−3 |
439 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 | ||
Fe1 | 0.53640 (6) | 0.12392 (5) | 0.46090 (2) | 0.04255 (16) | |
Cl1 | 0.81665 (15) | 0.70325 (12) | −0.09593 (6) | 0.0942 (4) | |
Cl2 | 0.41822 (16) | 0.88209 (11) | 0.91545 (5) | 0.0932 (4) | |
Cl3 | 0.28229 (14) | 0.59403 (11) | 1.00137 (5) | 0.0879 (4) | |
N1 | 0.5944 (4) | 0.2571 (3) | 0.56111 (15) | 0.0518 (9) | |
N2 | 0.4754 (3) | −0.0065 (3) | 0.35844 (15) | 0.0493 (8) | |
N3 | 1.0886 (4) | 1.1192 (3) | 0.31387 (16) | 0.0633 (10) | |
N4 | 0.9153 (4) | 1.0935 (3) | 0.31608 (16) | 0.0545 (9) | |
N5 | 0.9562 (4) | 0.9986 (3) | 0.20814 (15) | 0.0469 (8) | |
N6 | 0.2192 (4) | 0.4095 (3) | 0.51909 (16) | 0.0575 (9) | |
N7 | 0.0498 (4) | 0.3852 (3) | 0.53051 (17) | 0.0575 (9) | |
N8 | 0.2018 (4) | 0.5377 (3) | 0.62253 (16) | 0.0447 (8) | |
N9 | 0.1490 (4) | 0.1463 (3) | 0.59896 (14) | 0.0468 (8) | |
N10 | −0.0244 (4) | 0.1290 (3) | 0.60322 (15) | 0.0461 (8) | |
N11 | 0.1199 (3) | 0.2618 (3) | 0.70379 (14) | 0.0395 (7) | |
O1 | 0.3213 (3) | 0.0112 (2) | 0.49662 (13) | 0.0402 (6) | |
O2 | 0.7680 (3) | 0.2021 (3) | 0.43624 (14) | 0.0524 (7) | |
O3 | 0.3662 (3) | 0.2333 (3) | 0.42643 (14) | 0.0517 (7) | |
S1 | 0.67311 (13) | 0.44880 (10) | 0.69114 (5) | 0.0643 (3) | |
S2 | 0.40098 (12) | −0.15078 (10) | 0.21581 (5) | 0.0616 (3) | |
C1 | 0.6275 (4) | 0.3375 (3) | 0.61526 (19) | 0.0414 (9) | |
C2 | 0.4443 (4) | −0.0668 (3) | 0.29919 (19) | 0.0432 (10) | |
C3 | 0.8410 (5) | 1.0220 (4) | 0.2526 (2) | 0.0539 (11) | |
H7 | 0.7229 | 0.9906 | 0.2394 | 0.065* | |
C4 | 1.1071 (5) | 1.0625 (4) | 0.2506 (2) | 0.0658 (13) | |
H8 | 1.2132 | 1.0651 | 0.2357 | 0.079* | |
C5 | 0.9232 (5) | 0.9260 (4) | 0.13488 (19) | 0.0478 (10) | |
C6 | 1.0521 (5) | 0.9321 (4) | 0.0947 (2) | 0.0678 (13) | |
H9 | 1.1598 | 0.9828 | 0.1154 | 0.081* | |
C7 | 1.0201 (5) | 0.8626 (4) | 0.0238 (2) | 0.0769 (14) | |
H10 | 1.1065 | 0.8654 | −0.0032 | 0.092* | |
C8 | 0.8611 (5) | 0.7902 (4) | −0.00595 (19) | 0.0603 (11) | |
C9 | 0.7322 (5) | 0.7823 (4) | 0.0331 (2) | 0.0647 (12) | |
H11 | 0.6246 | 0.7318 | 0.0120 | 0.078* | |
C10 | 0.7645 (5) | 0.8500 (4) | 0.1036 (2) | 0.0633 (12) | |
H12 | 0.6784 | 0.8446 | 0.1305 | 0.076* | |
C11 | 0.0450 (5) | 0.4635 (4) | 0.5915 (2) | 0.0558 (11) | |
H13 | −0.0540 | 0.4683 | 0.6115 | 0.067* | |
C12 | 0.3038 (5) | 0.5010 (4) | 0.5745 (2) | 0.0594 (11) | |
H14 | 0.4198 | 0.5364 | 0.5802 | 0.071* | |
C13 | 0.2501 (5) | 0.6260 (3) | 0.69190 (19) | 0.0439 (9) | |
C14 | 0.1375 (5) | 0.6350 (4) | 0.7392 (2) | 0.0592 (11) | |
H15 | 0.0265 | 0.5867 | 0.7250 | 0.071* | |
C15 | 0.1885 (5) | 0.7152 (4) | 0.8074 (2) | 0.0665 (12) | |
H16 | 0.1112 | 0.7220 | 0.8389 | 0.080* | |
C16 | 0.3512 (6) | 0.7843 (4) | 0.82879 (19) | 0.0579 (11) | |
C17 | 0.4632 (5) | 0.7791 (4) | 0.7819 (2) | 0.0668 (13) | |
H17 | 0.5730 | 0.8292 | 0.7963 | 0.080* | |
C18 | 0.4138 (5) | 0.7001 (4) | 0.7134 (2) | 0.0657 (12) | |
H18 | 0.4902 | 0.6966 | 0.6817 | 0.079* | |
C19 | −0.0374 (4) | 0.1979 (3) | 0.66556 (19) | 0.0474 (10) | |
H19 | −0.1410 | 0.2029 | 0.6821 | 0.057* | |
C20 | 0.2307 (5) | 0.2255 (3) | 0.65901 (19) | 0.0497 (10) | |
H20 | 0.3497 | 0.2536 | 0.6699 | 0.060* | |
C21 | 0.1591 (4) | 0.3441 (3) | 0.77494 (18) | 0.0412 (9) | |
C22 | 0.0297 (4) | 0.3605 (3) | 0.81508 (19) | 0.0527 (11) | |
H21 | −0.0833 | 0.3191 | 0.7954 | 0.063* | |
C23 | 0.0681 (5) | 0.4380 (4) | 0.8839 (2) | 0.0591 (11) | |
H22 | −0.0194 | 0.4500 | 0.9104 | 0.071* | |
C24 | 0.2350 (5) | 0.4975 (4) | 0.91359 (19) | 0.0560 (11) | |
C25 | 0.3640 (5) | 0.4839 (4) | 0.8742 (2) | 0.0591 (11) | |
H23 | 0.4763 | 0.5268 | 0.8941 | 0.071* | |
C26 | 0.3268 (4) | 0.4065 (3) | 0.80535 (19) | 0.0524 (10) | |
H24 | 0.4147 | 0.3961 | 0.7790 | 0.063* | |
H1 | 0.237 (3) | −0.039 (3) | 0.4646 (12) | 0.094 (15)* | |
H2 | 0.276 (4) | 0.058 (3) | 0.5303 (14) | 0.108 (18)* | |
H3 | 0.854 (3) | 0.260 (3) | 0.4649 (14) | 0.108 (18)* | |
H4 | 0.809 (4) | 0.170 (3) | 0.3975 (10) | 0.078 (15)* | |
H5 | 0.323 (4) | 0.287 (3) | 0.4580 (14) | 0.100 (17)* | |
H6 | 0.279 (3) | 0.192 (3) | 0.3924 (12) | 0.085 (15)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Fe1 | 0.0324 (3) | 0.0523 (3) | 0.0402 (3) | 0.0071 (3) | 0.0074 (2) | 0.0088 (3) |
Cl1 | 0.0811 (9) | 0.1224 (11) | 0.0619 (7) | 0.0147 (8) | 0.0189 (6) | −0.0027 (7) |
Cl2 | 0.1116 (11) | 0.0920 (9) | 0.0594 (7) | 0.0173 (8) | 0.0104 (7) | −0.0025 (6) |
Cl3 | 0.0801 (8) | 0.1053 (10) | 0.0563 (7) | −0.0014 (7) | 0.0202 (6) | −0.0076 (7) |
N1 | 0.043 (2) | 0.057 (2) | 0.050 (2) | 0.0085 (17) | 0.0069 (16) | 0.0060 (17) |
N2 | 0.0364 (19) | 0.060 (2) | 0.050 (2) | 0.0120 (16) | 0.0093 (16) | 0.0124 (18) |
N3 | 0.046 (2) | 0.089 (3) | 0.051 (2) | 0.0173 (19) | 0.0071 (18) | 0.012 (2) |
N4 | 0.040 (2) | 0.072 (2) | 0.052 (2) | 0.0103 (18) | 0.0118 (17) | 0.0165 (18) |
N5 | 0.0368 (19) | 0.060 (2) | 0.048 (2) | 0.0127 (17) | 0.0119 (17) | 0.0190 (17) |
N6 | 0.050 (2) | 0.057 (2) | 0.059 (2) | 0.0136 (18) | 0.0077 (18) | 0.0059 (18) |
N7 | 0.047 (2) | 0.057 (2) | 0.062 (2) | 0.0009 (18) | 0.0069 (18) | 0.0117 (19) |
N8 | 0.0355 (19) | 0.046 (2) | 0.051 (2) | 0.0050 (16) | 0.0086 (16) | 0.0118 (16) |
N9 | 0.0387 (19) | 0.052 (2) | 0.046 (2) | 0.0069 (16) | 0.0086 (16) | 0.0082 (17) |
N10 | 0.0346 (19) | 0.054 (2) | 0.0464 (19) | 0.0113 (16) | 0.0056 (15) | 0.0086 (17) |
N11 | 0.0306 (18) | 0.0447 (19) | 0.0417 (18) | 0.0053 (15) | 0.0082 (15) | 0.0103 (15) |
O1 | 0.0296 (14) | 0.0511 (17) | 0.0322 (14) | 0.0038 (13) | 0.0064 (12) | 0.0007 (12) |
O2 | 0.0385 (16) | 0.0649 (19) | 0.0454 (17) | −0.0036 (15) | 0.0167 (14) | 0.0044 (15) |
O3 | 0.0391 (16) | 0.0647 (19) | 0.0468 (17) | 0.0134 (15) | 0.0049 (15) | 0.0081 (15) |
S1 | 0.0502 (7) | 0.0720 (8) | 0.0539 (6) | 0.0008 (6) | 0.0134 (5) | −0.0062 (6) |
S2 | 0.0481 (7) | 0.0740 (8) | 0.0474 (6) | −0.0018 (6) | 0.0103 (5) | −0.0020 (6) |
C1 | 0.024 (2) | 0.050 (3) | 0.052 (2) | 0.0080 (18) | 0.0129 (18) | 0.014 (2) |
C2 | 0.026 (2) | 0.048 (3) | 0.051 (2) | 0.0037 (18) | 0.0081 (19) | 0.009 (2) |
C3 | 0.037 (2) | 0.066 (3) | 0.060 (3) | 0.005 (2) | 0.014 (2) | 0.022 (2) |
C4 | 0.036 (3) | 0.095 (4) | 0.060 (3) | 0.004 (2) | 0.005 (2) | 0.019 (3) |
C5 | 0.042 (2) | 0.060 (3) | 0.046 (2) | 0.014 (2) | 0.011 (2) | 0.019 (2) |
C6 | 0.049 (3) | 0.092 (3) | 0.055 (3) | −0.002 (2) | 0.013 (2) | 0.015 (3) |
C7 | 0.055 (3) | 0.116 (4) | 0.056 (3) | 0.007 (3) | 0.020 (2) | 0.017 (3) |
C8 | 0.060 (3) | 0.068 (3) | 0.053 (3) | 0.016 (2) | 0.016 (2) | 0.013 (2) |
C9 | 0.048 (3) | 0.075 (3) | 0.062 (3) | −0.002 (2) | 0.014 (2) | 0.008 (2) |
C10 | 0.046 (3) | 0.077 (3) | 0.060 (3) | 0.002 (2) | 0.016 (2) | 0.012 (2) |
C11 | 0.038 (3) | 0.060 (3) | 0.065 (3) | 0.001 (2) | 0.013 (2) | 0.014 (2) |
C12 | 0.043 (2) | 0.066 (3) | 0.064 (3) | 0.012 (2) | 0.015 (2) | 0.006 (2) |
C13 | 0.042 (2) | 0.046 (2) | 0.047 (2) | 0.010 (2) | 0.011 (2) | 0.018 (2) |
C14 | 0.048 (3) | 0.062 (3) | 0.070 (3) | 0.008 (2) | 0.019 (2) | 0.021 (2) |
C15 | 0.070 (3) | 0.072 (3) | 0.057 (3) | 0.013 (3) | 0.024 (2) | 0.012 (2) |
C16 | 0.070 (3) | 0.054 (3) | 0.045 (3) | 0.011 (2) | 0.008 (2) | 0.009 (2) |
C17 | 0.059 (3) | 0.069 (3) | 0.057 (3) | −0.008 (2) | 0.009 (2) | 0.002 (2) |
C18 | 0.056 (3) | 0.077 (3) | 0.060 (3) | −0.002 (2) | 0.022 (2) | 0.015 (2) |
C19 | 0.027 (2) | 0.062 (3) | 0.052 (2) | 0.004 (2) | 0.0068 (19) | 0.016 (2) |
C20 | 0.034 (2) | 0.060 (3) | 0.055 (3) | 0.010 (2) | 0.018 (2) | 0.010 (2) |
C21 | 0.034 (2) | 0.046 (2) | 0.045 (2) | 0.0076 (18) | 0.0099 (18) | 0.0128 (19) |
C22 | 0.035 (2) | 0.066 (3) | 0.050 (3) | 0.002 (2) | 0.011 (2) | 0.008 (2) |
C23 | 0.047 (3) | 0.072 (3) | 0.059 (3) | 0.012 (2) | 0.023 (2) | 0.013 (2) |
C24 | 0.063 (3) | 0.055 (3) | 0.046 (3) | 0.007 (2) | 0.013 (2) | 0.007 (2) |
C25 | 0.044 (3) | 0.068 (3) | 0.054 (3) | 0.001 (2) | 0.011 (2) | 0.003 (2) |
C26 | 0.036 (2) | 0.065 (3) | 0.053 (3) | 0.009 (2) | 0.016 (2) | 0.008 (2) |
Fe1—N1 | 2.086 (3) | S2—C2 | 1.633 (4) |
Fe1—O2 | 2.100 (2) | C3—H7 | 0.9300 |
Fe1—O3 | 2.102 (3) | C4—H8 | 0.9300 |
Fe1—N2 | 2.107 (3) | C5—C10 | 1.378 (4) |
Fe1—O1i | 2.264 (3) | C5—C6 | 1.387 (4) |
Fe1—O1 | 2.281 (2) | C6—C7 | 1.383 (5) |
Cl1—C8 | 1.752 (4) | C6—H9 | 0.9300 |
Cl2—C16 | 1.738 (4) | C7—C8 | 1.362 (5) |
Cl3—C24 | 1.745 (4) | C7—H10 | 0.9300 |
N1—C1 | 1.169 (4) | C8—C9 | 1.373 (4) |
N2—C2 | 1.162 (4) | C9—C10 | 1.372 (4) |
N3—C4 | 1.285 (4) | C9—H11 | 0.9300 |
N3—N4 | 1.376 (4) | C10—H12 | 0.9300 |
N4—C3 | 1.305 (4) | C11—H13 | 0.9300 |
N5—C4 | 1.351 (4) | C12—H14 | 0.9300 |
N5—C3 | 1.360 (4) | C13—C14 | 1.377 (4) |
N5—C5 | 1.432 (4) | C13—C18 | 1.384 (4) |
N6—C12 | 1.306 (4) | C14—C15 | 1.380 (4) |
N6—N7 | 1.397 (4) | C14—H15 | 0.9300 |
N7—C11 | 1.298 (4) | C15—C16 | 1.357 (5) |
N8—C12 | 1.352 (4) | C15—H16 | 0.9300 |
N8—C11 | 1.359 (4) | C16—C17 | 1.370 (4) |
N8—C13 | 1.428 (4) | C17—C18 | 1.378 (4) |
N9—C20 | 1.300 (4) | C17—H17 | 0.9300 |
N9—N10 | 1.381 (3) | C18—H18 | 0.9300 |
N10—C19 | 1.296 (4) | C19—H19 | 0.9300 |
N11—C19 | 1.361 (4) | C20—H20 | 0.9300 |
N11—C20 | 1.359 (4) | C21—C26 | 1.387 (4) |
N11—C21 | 1.429 (4) | C21—C22 | 1.387 (4) |
O1—Fe1i | 2.264 (3) | C22—C23 | 1.374 (4) |
O1—H1 | 0.869 (10) | C22—H21 | 0.9300 |
O1—H2 | 0.880 (10) | C23—C24 | 1.371 (4) |
O2—H3 | 0.884 (10) | C23—H22 | 0.9300 |
O2—H4 | 0.881 (10) | C24—C25 | 1.372 (4) |
O3—H5 | 0.885 (10) | C25—C26 | 1.375 (4) |
O3—H6 | 0.875 (10) | C25—H23 | 0.9300 |
S1—C1 | 1.632 (4) | C26—H24 | 0.9300 |
N1—Fe1—O2 | 90.22 (11) | C8—C7—H10 | 120.3 |
N1—Fe1—O3 | 89.68 (12) | C6—C7—H10 | 120.3 |
O2—Fe1—O3 | 101.01 (10) | C7—C8—C9 | 121.6 (4) |
N1—Fe1—N2 | 178.33 (12) | C7—C8—Cl1 | 120.2 (3) |
O2—Fe1—N2 | 89.47 (11) | C9—C8—Cl1 | 118.2 (3) |
O3—Fe1—N2 | 88.76 (11) | C8—C9—C10 | 119.0 (4) |
N1—Fe1—O1i | 90.32 (11) | C8—C9—H11 | 120.5 |
O2—Fe1—O1i | 89.04 (10) | C10—C9—H11 | 120.5 |
O3—Fe1—O1i | 169.95 (9) | C9—C10—C5 | 120.7 (4) |
N2—Fe1—O1i | 91.32 (11) | C9—C10—H12 | 119.6 |
N1—Fe1—O1 | 89.79 (10) | C5—C10—H12 | 119.6 |
O2—Fe1—O1 | 167.40 (10) | N7—C11—N8 | 111.9 (3) |
O3—Fe1—O1 | 91.59 (10) | N7—C11—H13 | 124.0 |
N2—Fe1—O1 | 90.87 (10) | N8—C11—H13 | 124.0 |
O1i—Fe1—O1 | 78.36 (9) | N6—C12—N8 | 111.7 (3) |
C1—N1—Fe1 | 175.9 (3) | N6—C12—H14 | 124.2 |
C2—N2—Fe1 | 172.4 (3) | N8—C12—H14 | 124.2 |
C4—N3—N4 | 107.0 (3) | C14—C13—C18 | 119.2 (4) |
C3—N4—N3 | 105.8 (3) | C14—C13—N8 | 120.7 (3) |
C4—N5—C3 | 102.1 (3) | C18—C13—N8 | 120.1 (3) |
C4—N5—C5 | 129.6 (3) | C15—C14—C13 | 120.4 (4) |
C3—N5—C5 | 128.4 (3) | C15—C14—H15 | 119.8 |
C12—N6—N7 | 106.4 (3) | C13—C14—H15 | 119.8 |
C11—N7—N6 | 106.3 (3) | C16—C15—C14 | 120.1 (4) |
C12—N8—C11 | 103.7 (3) | C16—C15—H16 | 120.0 |
C12—N8—C13 | 128.3 (3) | C14—C15—H16 | 120.0 |
C11—N8—C13 | 127.9 (3) | C15—C16—C17 | 120.2 (4) |
C20—N9—N10 | 106.8 (3) | C15—C16—Cl2 | 120.3 (3) |
C19—N10—N9 | 106.9 (3) | C17—C16—Cl2 | 119.4 (3) |
C19—N11—C20 | 103.5 (3) | C16—C17—C18 | 120.3 (4) |
C19—N11—C21 | 128.0 (3) | C16—C17—H17 | 119.8 |
C20—N11—C21 | 128.5 (3) | C18—C17—H17 | 119.8 |
Fe1i—O1—Fe1 | 101.64 (9) | C17—C18—C13 | 119.7 (4) |
Fe1i—O1—H1 | 104 (3) | C17—C18—H18 | 120.1 |
Fe1—O1—H1 | 119 (2) | C13—C18—H18 | 120.1 |
Fe1i—O1—H2 | 110 (3) | N10—C19—N11 | 111.4 (3) |
Fe1—O1—H2 | 114 (2) | N10—C19—H19 | 124.3 |
H1—O1—H2 | 108 (2) | N11—C19—H19 | 124.3 |
Fe1—O2—H3 | 128 (2) | N9—C20—N11 | 111.3 (3) |
Fe1—O2—H4 | 125 (2) | N9—C20—H20 | 124.3 |
H3—O2—H4 | 106 (2) | N11—C20—H20 | 124.3 |
Fe1—O3—H5 | 119 (3) | C26—C21—C22 | 119.0 (3) |
Fe1—O3—H6 | 117 (2) | C26—C21—N11 | 120.8 (3) |
H5—O3—H6 | 106 (2) | C22—C21—N11 | 120.2 (3) |
N1—C1—S1 | 179.6 (3) | C23—C22—C21 | 120.1 (3) |
N2—C2—S2 | 179.7 (3) | C23—C22—H21 | 119.9 |
N4—C3—N5 | 112.2 (3) | C21—C22—H21 | 119.9 |
N4—C3—H7 | 123.9 | C24—C23—C22 | 120.2 (4) |
N5—C3—H7 | 123.9 | C24—C23—H22 | 119.9 |
N3—C4—N5 | 112.9 (4) | C22—C23—H22 | 119.9 |
N3—C4—H8 | 123.6 | C25—C24—C23 | 120.4 (4) |
N5—C4—H8 | 123.6 | C25—C24—Cl3 | 119.9 (3) |
C10—C5—C6 | 119.4 (4) | C23—C24—Cl3 | 119.7 (3) |
C10—C5—N5 | 120.8 (3) | C24—C25—C26 | 119.8 (4) |
C6—C5—N5 | 119.8 (3) | C24—C25—H23 | 120.1 |
C5—C6—C7 | 119.9 (4) | C26—C25—H23 | 120.1 |
C5—C6—H9 | 120.1 | C25—C26—C21 | 120.4 (3) |
C7—C6—H9 | 120.1 | C25—C26—H24 | 119.8 |
C8—C7—C6 | 119.4 (4) | C21—C26—H24 | 119.8 |
Symmetry code: (i) −x+1, −y, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N10ii | 0.87 (3) | 1.97 (3) | 2.827 (4) | 170 (3) |
O1—H2···N9 | 0.88 (3) | 1.94 (3) | 2.819 (4) | 173 (3) |
O2—H3···N7iii | 0.88 (3) | 1.98 (3) | 2.866 (5) | 178 (3) |
O2—H4···N4iv | 0.88 (2) | 1.97 (3) | 2.853 (4) | 175 (3) |
O3—H5···N6 | 0.88 (3) | 1.92 (3) | 2.802 (4) | 174 (3) |
O3—H6···N3v | 0.88 (2) | 1.93 (2) | 2.803 (4) | 172 (3) |
C3—H7···S2vi | 0.93 | 2.72 | 3.624 (5) | 165 |
C22—H21···S2ii | 0.93 | 2.87 | 3.736 (5) | 156 |
C11—H13···S1vii | 0.93 | 2.87 | 3.783 (5) | 167 |
Symmetry codes: (ii) −x, −y, −z+1; (iii) x+1, y, z; (iv) x, y−1, z; (v) x−1, y−1, z; (vi) x, y+1, z; (vii) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | [Fe2(NCS)4(H2O)6]·6C8H6ClN3 |
Mr | 1529.76 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 298 |
a, b, c (Å) | 7.944 (3), 11.085 (5), 19.912 (10) |
α, β, γ (°) | 105.613 (10), 97.75 (1), 97.932 (7) |
V (Å3) | 1645.1 (12) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 0.88 |
Crystal size (mm) | 0.25 × 0.21 × 0.17 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.811, 0.865 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8642, 5705, 2903 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.076, 0.77 |
No. of reflections | 5705 |
No. of parameters | 439 |
No. of restraints | 9 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.25, −0.24 |
Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2003).
Fe1—N1 | 2.086 (3) | Fe1—N2 | 2.107 (3) |
Fe1—O2 | 2.100 (2) | Fe1—O1i | 2.264 (3) |
Fe1—O3 | 2.102 (3) | Fe1—O1 | 2.281 (2) |
N1—Fe1—O2 | 90.22 (11) | O3—Fe1—O1i | 169.95 (9) |
N1—Fe1—O3 | 89.68 (12) | N2—Fe1—O1i | 91.32 (11) |
O2—Fe1—O3 | 101.01 (10) | O1i—Fe1—O1 | 78.36 (9) |
N1—Fe1—N2 | 178.33 (12) | Fe1i—O1—Fe1 | 101.64 (9) |
O2—Fe1—O1i | 89.04 (10) |
Symmetry code: (i) −x+1, −y, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N10ii | 0.87 (3) | 1.97 (3) | 2.827 (4) | 170 (3) |
O1—H2···N9 | 0.88 (3) | 1.94 (3) | 2.819 (4) | 173 (3) |
O2—H3···N7iii | 0.88 (3) | 1.98 (3) | 2.866 (5) | 178 (3) |
O2—H4···N4iv | 0.88 (2) | 1.97 (3) | 2.853 (4) | 175 (3) |
O3—H5···N6 | 0.88 (3) | 1.92 (3) | 2.802 (4) | 174 (3) |
O3—H6···N3v | 0.88 (2) | 1.93 (2) | 2.803 (4) | 172 (3) |
C3—H7···S2vi | 0.93 | 2.72 | 3.624 (5) | 165 |
C22—H21···S2ii | 0.93 | 2.87 | 3.736 (5) | 156 |
C11—H13···S1vii | 0.93 | 2.87 | 3.783 (5) | 167 |
Symmetry codes: (ii) −x, −y, −z+1; (iii) x+1, y, z; (iv) x, y−1, z; (v) x−1, y−1, z; (vi) x, y+1, z; (vii) x−1, y, z. |
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 diiron unit, with a carboxylate-rich coordination environment, continue to attract considerable attention due to the enzyme catalysis activity, which occur in related multicompent dioxygen dependent enzymes, including toluene monooxygenase (Sazinsky et al., 2004), the R2 subunit of ribonucleotide reductase (Stubbe & Van der Donk, 1998; Nordlund & Eklund, 1993). With the development of compounds that contained the diiron center, the structure of a series of Fe2(II,II) (MacMurdo et al., 2000), Fe2(III,III) (Zheng et al., 1999) and Fe2(III,IV) (Hsu et al., 1999) complexes with a central 2Fe2O quadrilateral have been currently obtained. Compared with the chelating to the iron atoms with the carboxylic oxygen atoms, it is rarely reported that the quadrilateral center includes both aqueous oxygen atoms. In order to explore the furthur details of the coordinated environment of the diiron system, the title complex was synthesized. As shown in Fig. 1, the complex structure comprises two distorted octahedron iron(II) centers straddling a crystallographic inversion center bridged by two aqueous oxygen atoms to form a quadrilateral core. The separation between the iron atoms is 3.523 (2) Å, which is remarkably different from that 3.0430 (7)Å reported previously, owing to the absence of two carboxylate ligands (Yoon et al., 2004). Moreover, the distance of Fe—Fe is comparatively distinguished from that diiron containing the other higher valence of iron (MacMurdo et al., 2000; Zheng et al., 1999; Hsu et al., 1999). The bond lengths of Fe—O1 and Fe—O1a are 2.264 (3) and 2.281 (2) Å, and the angles of O1—Fe—O1a and Fe1a—O1—Fe are 78.36 (9)° and 101.64 (9)°. Each Fe(II) center resides in a six-coordinated octahedron of N2O4. On the equator plane, the center is bridged by two symmetrical O1 (water) to form the quadrilateral core with the mean distance of 2.272 (2) Å, and is connected with O2 and O3 offered by different waters as the terminal ligands with the bond lengths 2.102 (3)Å and 2.100 (2) Å. The axial positions are occupied by two N atoms from the NCS- anions with the distances 2.086 (3)Å and 2.107 (3)Å to the iron core. Selected bonds and angles are listed in Table 1. As indicated in Fig.2, the classic intermolecular O—H···N H-bonds are formed between the triazol nitrogen atom supplied by the uncoordinated organic ligand 1,2,4-triazol-chloro-benzene and aquous oxygen atoms supplied by the bridging and terminal water ligands to generate a one-dimension ladder structure with the N···O separation ranged from 2.803 (2)Å to 2.866 (4) Å. Moreover, there are three weak intermolecular hydrogen bonding contacts C—H···S that form a three-dimensional network with the C···S distances between 3.624 (5) Å and 3.783 (5) Å. The details of the hydrogen bonds are shown in Table 2.