metal-organic compounds
[(1-Azulenyl)methanethiolato-κS](1,4,8,12-tetraazacyclopentadecane-κ4N)zinc(II) perchlorate
aInstitut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, 07743 Jena, Germany, and bInstitut für Organische Chemie und Makromolekulare Chemie, Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, 07743 Jena, Germany
*Correspondence e-mail: goerls@xa.nlwl.uni-jena.de
In the title compound, [Zn(C11H26N4)(C11H9S)]ClO4, the ZnII atom is five-coordinated by four N atoms from a neutral 1,4,8,12-tetraazacyclopentadecane aza-macrocycle molecule, and one S atom from an azulenylmethanethiolate ligand. Only monomers are found in the crystal. The coordination geometry can be described as trigonal bipyramidal, with the thiolate group in an equatorial position. The Zn—N and Zn—S distances are in the usual ranges for this type of complex.
Related literature
For related literature, see: Notni, Görls et al. (2006); Notni, Schenk et al. (2006); Notni et al. (2007); Salter et al. (2005); Schenk et al. (2006).
Experimental
Crystal data
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Data collection
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Data collection: COLLECT (Nonius, 1998); cell DENZO (Otwinowski & Minor, 1997); data reduction: DENZO; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Siemens, 1990); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536807047514/hy2083sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807047514/hy2083Isup2.hkl
The title compound was prepared according to the published procedure (Notni, Görls et al., 2006). A solution of zinc perchlorate hexahydrate (0.750 g, 2 mmol) and 1,4,8,12,tetraazacyclopentadecane (0.430 g, 2 mmol) in methanol (20 ml) was heated for 15 min. Then a solution of potassium hydroxide (0.112 g, 2 mmol) and 1-azulenylmethylthiol (0.350 g, 2 mmol) in methanol (5 ml) was added dropwise, whereupon a fine-crystalline precipitate of potassium perchlorate was obtained. This was filtered off, and from the remaining deep-blue solution, blue needle crystals of the title compound precipitated after 5 min which were collected on a filter funnel and dried in vacuum. Yield 66% (0.731 g). m. p. 473.5–475.5 K. Analysis, calculated for C22H35ClN4O4SZn: C 47.83, H 6.39, N 10.14, S 5.80, Cl 6.42%; Found: C 47.81, H 6.42, N 9.94, S 5.70, Cl 6.49%.
H atoms were positioned geometrically and refined as riding, with C—H = 0.95Å (CH) and 0.99Å (CH2), and N—H = 0.93Å and Uiso(H) = 1.2Ueq(C, N). O atoms of the perchlorate group are disordered and they were refined isotropically.
The title compound belongs to a series of zinc thiolate complexes with azamacrocyclic ligands (Notni, Görls et al., 2006), which are potent model systems for a number of zinc enzymes (Schenk et al., 2006). These compounds possess nucleophilic p-methylthiolate or phenylmethylthiolate residues, the nucleophilicity of which is influenced by the nature of the macrocyclic ligand (Notni, Schenk et al., 2006; Notni et al., 2007). In order to gain insight into the electronic properties of the sulfur atom, azulenylmethyl derivatives were believed to allow a qualitative estimation of electron density at the thiolate sulfur employing VIS spectroscopy. However, the project failed since most of the desired complexes were elusive due to degradation processes during synthesis.
In crystalline form, the title compound is air-stable for several months. The
of the title compound contains a monovalent zinc(II) complex cation and a discrete perchlorate anion as shown in Fig. 1. Within the cation, the ZnII atom is coordinated by four N atoms and one S atom. Whether the can be assigned to tetragonal-pyramidal or trigonal-bipyramidal type is a question, which has been discussed in detail before (Notni, Görls et al., 2006). Following the argumentation given therein, we consider the title structure being trigonal-bipyramidal since pairs of opposing short Zn—N bond lengths [2.134 (4) and 2.139 (4) Å] as well as long Zn—N bond lengths [2.235 (3) and 2.272 (4) Å] are found. This is the largest difference between short and long Zn—N bond distances found for this type of zinc complexes (Notni, Görls et al., 2006; Salter et al., 2005). The pair of long N—Zn—N bonds is considered the axis of the trigonal bipyramid, the thiolate group thus being found in the equatorial position. The Zn—S bond length of 2.280 (1)Å is within the usual range for this kind of compounds (2.27–2.32 Å). The N atoms in these complexes are chiral in nature and the could be determined. In analogy to similar zinc–thiolate complexes of 1,4,8,12-tetraazacyclopentadecane, the N-bound H atoms are found in (+ – – –) positions ('+' denotes the H atom being positioned at the thiolate side of the macrocycle and '–' at the opposite side).For related literature, see: Notni, Görls et al. (2006); Notni, Schenk et al. (2006); Notni et al. (2007); Salter et al. (2005); Schenk et al. (2006).
Data collection: COLLECT (Nonius, 1998); cell
DENZO (Otwinowski & Minor, 1997); data reduction: DENZO (Otwinowski & Minor, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Siemens, 1990); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).[Zn(C11H26N4)(C11H9S)]ClO4 | F(000) = 1160 |
Mr = 552.42 | Dx = 1.434 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 18270 reflections |
a = 8.0795 (1) Å | θ = 2.3–27.5° |
b = 13.7163 (3) Å | µ = 1.18 mm−1 |
c = 23.0913 (5) Å | T = 183 K |
V = 2559.00 (8) Å3 | Prism, blue |
Z = 4 | 0.06 × 0.06 × 0.05 mm |
Nonius KappaCCD diffractometer | 4978 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.060 |
Graphite monochromator | θmax = 27.5°, θmin = 2.3° |
φ and ω scans | h = −10→9 |
18270 measured reflections | k = −17→17 |
5858 independent reflections | l = −28→29 |
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)] = 0.049 | H-atom parameters constrained |
wR(F2) = 0.138 | w = 1/[σ2(Fo2) + (0.0822P)2 + 1.0799P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max = 0.038 |
5858 reflections | Δρmax = 0.73 e Å−3 |
295 parameters | Δρmin = −0.65 e Å−3 |
0 restraints | Absolute structure: Flack (1983), 2541 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.002 (16) |
[Zn(C11H26N4)(C11H9S)]ClO4 | V = 2559.00 (8) Å3 |
Mr = 552.42 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 8.0795 (1) Å | µ = 1.18 mm−1 |
b = 13.7163 (3) Å | T = 183 K |
c = 23.0913 (5) Å | 0.06 × 0.06 × 0.05 mm |
Nonius KappaCCD diffractometer | 4978 reflections with I > 2σ(I) |
18270 measured reflections | Rint = 0.060 |
5858 independent reflections |
R[F2 > 2σ(F2)] = 0.049 | H-atom parameters constrained |
wR(F2) = 0.138 | Δρmax = 0.73 e Å−3 |
S = 1.04 | Δρmin = −0.65 e Å−3 |
5858 reflections | Absolute structure: Flack (1983), 2541 Friedel pairs |
295 parameters | Absolute structure parameter: 0.002 (16) |
0 restraints |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
Zn | 0.54052 (5) | 0.85174 (3) | 0.645222 (17) | 0.03886 (13) | |
S | 0.38553 (14) | 0.73185 (7) | 0.60351 (5) | 0.0489 (2) | |
N1 | 0.5011 (5) | 0.8137 (3) | 0.74001 (15) | 0.0618 (11) | |
H1C | 0.4144 | 0.7691 | 0.7400 | 0.074* | |
N2 | 0.3875 (5) | 0.9714 (3) | 0.67100 (19) | 0.0631 (10) | |
H2C | 0.4580 | 1.0237 | 0.6779 | 0.076* | |
N3 | 0.5965 (5) | 0.9402 (3) | 0.56637 (15) | 0.0554 (9) | |
H3C | 0.6522 | 0.9965 | 0.5776 | 0.067* | |
N4 | 0.8012 (4) | 0.8308 (3) | 0.65356 (15) | 0.0541 (9) | |
H4C | 0.8461 | 0.8926 | 0.6589 | 0.065* | |
C1 | 0.4320 (9) | 0.9025 (4) | 0.7666 (2) | 0.084 (2) | |
H1A | 0.5223 | 0.9492 | 0.7751 | 0.100* | |
H1B | 0.3767 | 0.8858 | 0.8035 | 0.100* | |
C2 | 0.3087 (8) | 0.9488 (5) | 0.7257 (3) | 0.0865 (19) | |
H2A | 0.2152 | 0.9035 | 0.7191 | 0.104* | |
H2B | 0.2643 | 1.0093 | 0.7432 | 0.104* | |
C3 | 0.2676 (7) | 1.0040 (6) | 0.6259 (3) | 0.095 (2) | |
H3A | 0.1984 | 1.0567 | 0.6423 | 0.113* | |
H3B | 0.1934 | 0.9488 | 0.6164 | 0.113* | |
C4 | 0.3464 (8) | 1.0407 (5) | 0.5699 (3) | 0.0880 (19) | |
H4A | 0.2574 | 1.0656 | 0.5444 | 0.106* | |
H4B | 0.4193 | 1.0964 | 0.5795 | 0.106* | |
C5 | 0.4450 (8) | 0.9681 (4) | 0.5367 (2) | 0.0724 (14) | |
H5A | 0.3767 | 0.9092 | 0.5301 | 0.087* | |
H5B | 0.4734 | 0.9959 | 0.4984 | 0.087* | |
C6 | 0.7047 (7) | 0.8838 (4) | 0.5260 (2) | 0.0691 (14) | |
H6A | 0.7189 | 0.9214 | 0.4897 | 0.083* | |
H6B | 0.6495 | 0.8216 | 0.5161 | 0.083* | |
C7 | 0.8750 (7) | 0.8621 (5) | 0.5518 (2) | 0.0780 (16) | |
H7A | 0.9470 | 0.8363 | 0.5206 | 0.094* | |
H7B | 0.9242 | 0.9241 | 0.5652 | 0.094* | |
C8 | 0.8765 (7) | 0.7925 (4) | 0.6002 (2) | 0.0718 (14) | |
H8A | 0.9925 | 0.7738 | 0.6084 | 0.086* | |
H8B | 0.8163 | 0.7329 | 0.5884 | 0.086* | |
C9 | 0.8607 (6) | 0.7707 (5) | 0.7035 (2) | 0.0704 (14) | |
H9A | 0.9831 | 0.7722 | 0.7043 | 0.084* | |
H9B | 0.8259 | 0.7023 | 0.6976 | 0.084* | |
C10 | 0.7948 (7) | 0.8062 (5) | 0.7619 (2) | 0.0766 (16) | |
H10A | 0.8712 | 0.7847 | 0.7929 | 0.092* | |
H10B | 0.7929 | 0.8784 | 0.7620 | 0.092* | |
C11 | 0.6270 (9) | 0.7697 (5) | 0.7749 (2) | 0.0811 (17) | |
H11A | 0.6247 | 0.6982 | 0.7688 | 0.097* | |
H11B | 0.6020 | 0.7821 | 0.8162 | 0.097* | |
C12 | 0.4652 (7) | 0.6230 (3) | 0.6411 (2) | 0.0608 (11) | |
H12A | 0.5863 | 0.6294 | 0.6465 | 0.073* | |
H12B | 0.4135 | 0.6182 | 0.6799 | 0.073* | |
C13 | 0.4289 (5) | 0.5323 (3) | 0.60742 (18) | 0.0495 (10) | |
C14 | 0.2793 (5) | 0.4818 (3) | 0.60754 (16) | 0.0422 (8) | |
C15 | 0.1353 (6) | 0.5078 (3) | 0.63574 (18) | 0.0547 (10) | |
H15A | 0.1418 | 0.5657 | 0.6582 | 0.066* | |
C16 | −0.0175 (7) | 0.4616 (4) | 0.6360 (2) | 0.0653 (12) | |
H16A | −0.1021 | 0.4942 | 0.6571 | 0.078* | |
C17 | −0.0651 (7) | 0.3740 (4) | 0.6098 (2) | 0.0698 (13) | |
H17A | −0.1756 | 0.3537 | 0.6169 | 0.084* | |
C18 | 0.0282 (8) | 0.3127 (4) | 0.5746 (2) | 0.0692 (13) | |
H18A | −0.0273 | 0.2558 | 0.5614 | 0.083* | |
C19 | 0.1875 (7) | 0.3225 (4) | 0.5565 (2) | 0.0665 (13) | |
H19A | 0.2266 | 0.2723 | 0.5317 | 0.080* | |
C20 | 0.2998 (6) | 0.3947 (3) | 0.5689 (2) | 0.0546 (10) | |
C21 | 0.4628 (8) | 0.4009 (4) | 0.5486 (3) | 0.0780 (16) | |
H21A | 0.5143 | 0.3556 | 0.5232 | 0.094* | |
C22 | 0.5374 (7) | 0.4838 (4) | 0.5715 (3) | 0.0699 (13) | |
H22A | 0.6474 | 0.5042 | 0.5635 | 0.084* | |
Cl | 0.79877 (18) | 0.11964 (9) | 0.68485 (6) | 0.0683 (3) | |
O41 | 0.8208 (14) | 0.2153 (8) | 0.7006 (5) | 0.091 (3)* | 0.575 (13) |
O42 | 0.6918 (15) | 0.0533 (10) | 0.7147 (5) | 0.114 (4)* | 0.575 (13) |
O43 | 0.918 (3) | 0.0559 (17) | 0.6803 (12) | 0.221 (9)* | 0.575 (13) |
O44 | 0.8335 (15) | 0.0986 (8) | 0.6292 (5) | 0.122 (4)* | 0.575 (13) |
O41A | 0.823 (3) | 0.2011 (15) | 0.7194 (9) | 0.126 (7)* | 0.425 (13) |
O42A | 0.6508 (15) | 0.0964 (10) | 0.7185 (5) | 0.082 (3)* | 0.425 (13) |
O43A | 0.961 (2) | 0.0861 (11) | 0.7227 (7) | 0.120 (5)* | 0.425 (13) |
O44A | 0.7107 (19) | 0.1457 (11) | 0.6300 (6) | 0.116 (5)* | 0.425 (13) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn | 0.0422 (2) | 0.0405 (2) | 0.0338 (2) | −0.00398 (19) | −0.00309 (18) | −0.00221 (17) |
S | 0.0618 (6) | 0.0410 (5) | 0.0440 (5) | −0.0080 (4) | −0.0168 (5) | −0.0002 (4) |
N1 | 0.079 (3) | 0.069 (2) | 0.0373 (17) | −0.025 (2) | 0.0085 (17) | −0.0057 (17) |
N2 | 0.054 (2) | 0.056 (2) | 0.079 (3) | −0.0016 (19) | 0.008 (2) | −0.015 (2) |
N3 | 0.071 (2) | 0.059 (2) | 0.0365 (17) | −0.0173 (19) | −0.0119 (16) | 0.0113 (15) |
N4 | 0.0449 (16) | 0.069 (2) | 0.0479 (19) | −0.0047 (17) | 0.0017 (15) | −0.0041 (17) |
C1 | 0.114 (5) | 0.085 (4) | 0.052 (3) | −0.037 (4) | 0.032 (3) | −0.025 (3) |
C2 | 0.070 (3) | 0.094 (4) | 0.096 (5) | −0.003 (3) | 0.027 (3) | −0.033 (4) |
C3 | 0.055 (3) | 0.107 (5) | 0.121 (5) | 0.022 (3) | −0.019 (3) | −0.033 (4) |
C4 | 0.089 (4) | 0.080 (4) | 0.095 (5) | 0.007 (3) | −0.035 (4) | 0.015 (3) |
C5 | 0.085 (4) | 0.073 (3) | 0.059 (3) | 0.001 (3) | −0.017 (3) | 0.018 (2) |
C6 | 0.083 (3) | 0.088 (4) | 0.037 (2) | −0.004 (3) | 0.014 (2) | 0.003 (2) |
C7 | 0.066 (3) | 0.117 (5) | 0.051 (3) | −0.017 (3) | 0.015 (2) | −0.014 (3) |
C8 | 0.062 (3) | 0.089 (4) | 0.064 (3) | −0.005 (3) | 0.012 (2) | −0.008 (3) |
C9 | 0.054 (3) | 0.082 (3) | 0.075 (3) | 0.003 (3) | −0.024 (2) | 0.008 (3) |
C10 | 0.083 (4) | 0.092 (4) | 0.055 (3) | 0.003 (3) | −0.032 (3) | 0.001 (3) |
C11 | 0.111 (5) | 0.086 (4) | 0.047 (3) | −0.019 (4) | −0.007 (3) | 0.014 (3) |
C12 | 0.086 (3) | 0.044 (2) | 0.053 (2) | −0.009 (2) | −0.025 (3) | 0.0027 (18) |
C13 | 0.057 (2) | 0.0449 (19) | 0.046 (2) | −0.0006 (18) | −0.0149 (18) | 0.0022 (17) |
C14 | 0.055 (2) | 0.0375 (18) | 0.0337 (17) | 0.0030 (17) | −0.0042 (16) | 0.0017 (15) |
C15 | 0.075 (3) | 0.050 (2) | 0.038 (2) | 0.008 (2) | 0.002 (2) | 0.0029 (18) |
C16 | 0.067 (3) | 0.075 (3) | 0.054 (3) | 0.004 (3) | 0.012 (2) | 0.005 (2) |
C17 | 0.065 (3) | 0.077 (3) | 0.067 (3) | −0.011 (3) | 0.007 (2) | 0.017 (3) |
C18 | 0.083 (3) | 0.059 (3) | 0.066 (3) | −0.022 (3) | −0.007 (3) | −0.002 (2) |
C19 | 0.075 (3) | 0.052 (2) | 0.073 (3) | −0.007 (2) | −0.004 (3) | −0.012 (2) |
C20 | 0.068 (3) | 0.044 (2) | 0.052 (2) | 0.001 (2) | 0.001 (2) | −0.0080 (18) |
C21 | 0.064 (3) | 0.067 (3) | 0.103 (4) | −0.006 (3) | 0.016 (3) | −0.032 (3) |
C22 | 0.056 (2) | 0.068 (3) | 0.086 (3) | −0.005 (3) | −0.003 (3) | −0.005 (3) |
Cl | 0.0732 (7) | 0.0494 (6) | 0.0825 (8) | −0.0190 (5) | 0.0227 (7) | −0.0145 (6) |
Zn—N4 | 2.134 (4) | C9—C10 | 1.530 (8) |
Zn—N2 | 2.139 (4) | C9—H9A | 0.9900 |
Zn—N3 | 2.235 (3) | C9—H9B | 0.9900 |
Zn—N1 | 2.272 (4) | C10—C11 | 1.476 (9) |
Zn—S | 2.2804 (10) | C10—H10A | 0.9900 |
S—C12 | 1.843 (4) | C10—H10B | 0.9900 |
N1—C11 | 1.431 (8) | C11—H11A | 0.9900 |
N1—C1 | 1.474 (7) | C11—H11B | 0.9900 |
N1—H1C | 0.9300 | C12—C13 | 1.496 (6) |
N2—C2 | 1.448 (8) | C12—H12A | 0.9900 |
N2—C3 | 1.491 (8) | C12—H12B | 0.9900 |
N2—H2C | 0.9300 | C13—C22 | 1.379 (7) |
N3—C5 | 1.454 (7) | C13—C14 | 1.393 (6) |
N3—C6 | 1.494 (7) | C14—C15 | 1.380 (6) |
N3—H3C | 0.9300 | C14—C20 | 1.500 (6) |
N4—C8 | 1.472 (6) | C15—C16 | 1.388 (7) |
N4—C9 | 1.496 (6) | C15—H15A | 0.9500 |
N4—H4C | 0.9300 | C16—C17 | 1.400 (8) |
C1—C2 | 1.512 (10) | C16—H16A | 0.9500 |
C1—H1A | 0.9900 | C17—C18 | 1.390 (8) |
C1—H1B | 0.9900 | C17—H17A | 0.9500 |
C2—H2A | 0.9900 | C18—C19 | 1.360 (8) |
C2—H2B | 0.9900 | C18—H18A | 0.9500 |
C3—C4 | 1.527 (10) | C19—C20 | 1.374 (7) |
C3—H3A | 0.9900 | C19—H19A | 0.9500 |
C3—H3B | 0.9900 | C20—C21 | 1.401 (8) |
C4—C5 | 1.488 (10) | C21—C22 | 1.392 (7) |
C4—H4A | 0.9900 | C21—H21A | 0.9500 |
C4—H4B | 0.9900 | C22—H22A | 0.9500 |
C5—H5A | 0.9900 | Cl—O43 | 1.31 (2) |
C5—H5B | 0.9900 | Cl—O44 | 1.345 (12) |
C6—C7 | 1.529 (8) | Cl—O41 | 1.373 (11) |
C6—H6A | 0.9900 | Cl—O41A | 1.39 (2) |
C6—H6B | 0.9900 | Cl—O42 | 1.432 (12) |
C7—C8 | 1.469 (8) | Cl—O42A | 1.461 (11) |
C7—H7A | 0.9900 | Cl—O44A | 1.496 (15) |
C7—H7B | 0.9900 | Cl—O43A | 1.640 (16) |
C8—H8A | 0.9900 | O43—O44 | 1.48 (3) |
C8—H8B | 0.9900 | ||
N4—Zn—N2 | 130.42 (16) | N4—C9—H9A | 109.0 |
N4—Zn—N3 | 86.95 (15) | C10—C9—H9A | 109.0 |
N2—Zn—N3 | 85.81 (17) | N4—C9—H9B | 109.0 |
N4—Zn—N1 | 91.17 (15) | C10—C9—H9B | 109.0 |
N2—Zn—N1 | 80.05 (17) | H9A—C9—H9B | 107.8 |
N3—Zn—N1 | 159.70 (15) | C11—C10—C9 | 113.0 (5) |
N4—Zn—S | 118.88 (11) | C11—C10—H10A | 109.0 |
N2—Zn—S | 110.70 (12) | C9—C10—H10A | 109.0 |
N3—Zn—S | 99.13 (10) | C11—C10—H10B | 109.0 |
N1—Zn—S | 99.46 (11) | C9—C10—H10B | 109.0 |
C12—S—Zn | 101.15 (14) | H10A—C10—H10B | 107.8 |
C11—N1—C1 | 112.6 (5) | N1—C11—C10 | 113.3 (4) |
C11—N1—Zn | 122.7 (3) | N1—C11—H11A | 108.9 |
C1—N1—Zn | 105.3 (3) | C10—C11—H11A | 108.9 |
C11—N1—H1C | 104.9 | N1—C11—H11B | 108.9 |
C1—N1—H1C | 104.9 | C10—C11—H11B | 108.9 |
Zn—N1—H1C | 104.9 | H11A—C11—H11B | 107.7 |
C2—N2—C3 | 112.8 (5) | C13—C12—S | 111.1 (3) |
C2—N2—Zn | 109.4 (4) | C13—C12—H12A | 109.4 |
C3—N2—Zn | 114.3 (4) | S—C12—H12A | 109.4 |
C2—N2—H2C | 106.6 | C13—C12—H12B | 109.4 |
C3—N2—H2C | 106.6 | S—C12—H12B | 109.4 |
Zn—N2—H2C | 106.6 | H12A—C12—H12B | 108.0 |
C5—N3—C6 | 109.5 (4) | C22—C13—C14 | 108.2 (4) |
C5—N3—Zn | 110.9 (3) | C22—C13—C12 | 126.1 (4) |
C6—N3—Zn | 110.2 (3) | C14—C13—C12 | 125.7 (4) |
C5—N3—H3C | 108.7 | C15—C14—C13 | 127.1 (4) |
C6—N3—H3C | 108.7 | C15—C14—C20 | 125.4 (4) |
Zn—N3—H3C | 108.7 | C13—C14—C20 | 107.4 (4) |
C8—N4—C9 | 108.4 (4) | C14—C15—C16 | 129.4 (4) |
C8—N4—Zn | 112.4 (3) | C14—C15—H15A | 115.3 |
C9—N4—Zn | 117.4 (3) | C16—C15—H15A | 115.3 |
C8—N4—H4C | 105.9 | C15—C16—C17 | 129.3 (5) |
C9—N4—H4C | 105.9 | C15—C16—H16A | 115.3 |
Zn—N4—H4C | 105.9 | C17—C16—H16A | 115.3 |
N1—C1—C2 | 109.7 (4) | C18—C17—C16 | 128.6 (5) |
N1—C1—H1A | 109.7 | C18—C17—H17A | 115.7 |
C2—C1—H1A | 109.7 | C16—C17—H17A | 115.7 |
N1—C1—H1B | 109.7 | C19—C18—C17 | 129.3 (5) |
C2—C1—H1B | 109.7 | C19—C18—H18A | 115.4 |
H1A—C1—H1B | 108.2 | C17—C18—H18A | 115.4 |
N2—C2—C1 | 110.2 (5) | C18—C19—C20 | 129.2 (5) |
N2—C2—H2A | 109.6 | C18—C19—H19A | 115.4 |
C1—C2—H2A | 109.6 | C20—C19—H19A | 115.4 |
N2—C2—H2B | 109.6 | C19—C20—C21 | 126.5 (5) |
C1—C2—H2B | 109.6 | C19—C20—C14 | 128.7 (5) |
H2A—C2—H2B | 108.1 | C21—C20—C14 | 104.8 (4) |
N2—C3—C4 | 114.8 (5) | C22—C21—C20 | 109.2 (5) |
N2—C3—H3A | 108.6 | C22—C21—H21A | 125.4 |
C4—C3—H3A | 108.6 | C20—C21—H21A | 125.4 |
N2—C3—H3B | 108.6 | C13—C22—C21 | 110.4 (5) |
C4—C3—H3B | 108.6 | C13—C22—H22A | 124.8 |
H3A—C3—H3B | 107.5 | C21—C22—H22A | 124.8 |
C5—C4—C3 | 116.0 (5) | O43—Cl—O44 | 68.0 (13) |
C5—C4—H4A | 108.3 | O43—Cl—O41 | 124.5 (12) |
C3—C4—H4A | 108.3 | O44—Cl—O41 | 115.5 (7) |
C5—C4—H4B | 108.3 | O43—Cl—O41A | 119.0 (15) |
C3—C4—H4B | 108.3 | O44—Cl—O41A | 133.9 (10) |
H4A—C4—H4B | 107.4 | O41—Cl—O41A | 19.9 (9) |
N3—C5—C4 | 112.5 (5) | O43—Cl—O42 | 93.4 (11) |
N3—C5—H5A | 109.1 | O44—Cl—O42 | 116.7 (7) |
C4—C5—H5A | 109.1 | O41—Cl—O42 | 123.9 (8) |
N3—C5—H5B | 109.1 | O41A—Cl—O42 | 108.6 (11) |
C4—C5—H5B | 109.1 | O43—Cl—O42A | 120.1 (11) |
H5A—C5—H5B | 107.8 | O44—Cl—O42A | 129.2 (7) |
N3—C6—C7 | 112.6 (4) | O41—Cl—O42A | 100.0 (8) |
N3—C6—H6A | 109.1 | O41A—Cl—O42A | 89.0 (11) |
C7—C6—H6A | 109.1 | O42—Cl—O42A | 27.3 (6) |
N3—C6—H6B | 109.1 | O43—Cl—O44A | 116.3 (14) |
C7—C6—H6B | 109.1 | O44—Cl—O44A | 48.9 (6) |
H6A—C6—H6B | 107.8 | O41—Cl—O44A | 93.2 (8) |
C8—C7—C6 | 115.5 (5) | O41A—Cl—O44A | 111.1 (11) |
C8—C7—H7A | 108.4 | O42—Cl—O44A | 105.8 (7) |
C6—C7—H7A | 108.4 | O42A—Cl—O44A | 96.5 (7) |
C8—C7—H7B | 108.4 | O43—Cl—O43A | 42.8 (11) |
C6—C7—H7B | 108.4 | O44—Cl—O43A | 106.4 (8) |
H7A—C7—H7B | 107.5 | O41—Cl—O43A | 91.3 (8) |
C7—C8—N4 | 113.7 (5) | O41A—Cl—O43A | 78.9 (11) |
C7—C8—H8A | 108.8 | O42—Cl—O43A | 92.7 (7) |
N4—C8—H8A | 108.8 | O42A—Cl—O43A | 107.9 (7) |
C7—C8—H8B | 108.8 | O44A—Cl—O43A | 154.0 (8) |
N4—C8—H8B | 108.8 | Cl—O43—O44 | 57.3 (11) |
H8A—C8—H8B | 107.7 | Cl—O44—O43 | 54.7 (10) |
N4—C9—C10 | 113.1 (5) |
Experimental details
Crystal data | |
Chemical formula | [Zn(C11H26N4)(C11H9S)]ClO4 |
Mr | 552.42 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 183 |
a, b, c (Å) | 8.0795 (1), 13.7163 (3), 23.0913 (5) |
V (Å3) | 2559.00 (8) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.18 |
Crystal size (mm) | 0.06 × 0.06 × 0.05 |
Data collection | |
Diffractometer | Nonius KappaCCD |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 18270, 5858, 4978 |
Rint | 0.060 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.138, 1.04 |
No. of reflections | 5858 |
No. of parameters | 295 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.73, −0.65 |
Absolute structure | Flack (1983), 2541 Friedel pairs |
Absolute structure parameter | 0.002 (16) |
Computer programs: COLLECT (Nonius, 1998), DENZO (Otwinowski & Minor, 1997), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Siemens, 1990).
Zn—N4 | 2.134 (4) | Zn—N1 | 2.272 (4) |
Zn—N2 | 2.139 (4) | Zn—S | 2.2804 (10) |
Zn—N3 | 2.235 (3) | ||
N4—Zn—N2 | 130.42 (16) | N3—Zn—N1 | 159.70 (15) |
N4—Zn—N3 | 86.95 (15) | N4—Zn—S | 118.88 (11) |
N2—Zn—N3 | 85.81 (17) | N2—Zn—S | 110.70 (12) |
N4—Zn—N1 | 91.17 (15) | N3—Zn—S | 99.13 (10) |
N2—Zn—N1 | 80.05 (17) | N1—Zn—S | 99.46 (11) |
Acknowledgements
The authors gratefully acknowledge financial support from the Deutsche Forschungsgemeinschaft, SFB 436 `Metal Mediated Reactions Modelled after Nature'.
References
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The title compound belongs to a series of zinc thiolate complexes with azamacrocyclic ligands (Notni, Görls et al., 2006), which are potent model systems for a number of zinc enzymes (Schenk et al., 2006). These compounds possess nucleophilic p-methylthiolate or phenylmethylthiolate residues, the nucleophilicity of which is influenced by the nature of the macrocyclic ligand (Notni, Schenk et al., 2006; Notni et al., 2007). In order to gain insight into the electronic properties of the sulfur atom, azulenylmethyl derivatives were believed to allow a qualitative estimation of electron density at the thiolate sulfur employing VIS spectroscopy. However, the project failed since most of the desired complexes were elusive due to degradation processes during synthesis.
In crystalline form, the title compound is air-stable for several months. The crystal structure of the title compound contains a monovalent zinc(II) complex cation and a discrete perchlorate anion as shown in Fig. 1. Within the cation, the ZnII atom is coordinated by four N atoms and one S atom. Whether the coordination polyhedron can be assigned to tetragonal-pyramidal or trigonal-bipyramidal type is a question, which has been discussed in detail before (Notni, Görls et al., 2006). Following the argumentation given therein, we consider the title structure being trigonal-bipyramidal since pairs of opposing short Zn—N bond lengths [2.134 (4) and 2.139 (4) Å] as well as long Zn—N bond lengths [2.235 (3) and 2.272 (4) Å] are found. This is the largest difference between short and long Zn—N bond distances found for this type of zinc complexes (Notni, Görls et al., 2006; Salter et al., 2005). The pair of long N—Zn—N bonds is considered the axis of the trigonal bipyramid, the thiolate group thus being found in the equatorial position. The Zn—S bond length of 2.280 (1)Å is within the usual range for this kind of compounds (2.27–2.32 Å). The N atoms in these complexes are chiral in nature and the absolute configuration could be determined. In analogy to similar zinc–thiolate complexes of 1,4,8,12-tetraazacyclopentadecane, the N-bound H atoms are found in (+ – – –) positions ('+' denotes the H atom being positioned at the thiolate side of the macrocycle and '–' at the opposite side).