research communications
Potassium chloridotris(hypersiloxy)aluminate dimer
aChemistry Division, Code 6100, Naval Research Laboratory, 4555 overlook Av, SW, Washington, DC 20375-5342, USA, and bHoward University, Chemistry Department, 525 College St NW, Washington, DC 20059, USA
*Correspondence e-mail: andrew.purdy@nrl.navy.mil
The tris(trimethylsilylsiloxide) ligand, also known as hypersiloxide, is an extremely bulky group. In an attempt to make the monomeric Al(OSi(SiMe3)3)3, AlCl3 was combined with 3 equiv. of potassium hypersiloxide. The crystalline product isolated (40% yield), namely di-μ3-chlorido-bis[μ2-tris(trimethylsilyl)silanolato]tetrakis[tris(trimethylsilyl)silanolato]dialuminiumdipotassium, [Al2K2Cl2(C19H27OSi4)6], is a KCl adduct of aluminium tris(hypersilyloxide) that is dimerized through a planar K2Cl2 ring, with K—Cl distances of 3.1131 (8) and 3.319 (3) Å, and ring angles of 77.41 (2) and 102.60 (2)°. This ring is on an inversion center, and there is no supramolecular coordination.
Keywords: crystal structure; siloxide.
CCDC reference: 1910627
1. Chemical context
p and d orbitals, such as aluminum, tend to be dimers, trimers, or higher oligomers, from coordination between the alkoxy oxygens and the metal atom on another molecule. One way to prepare monomeric homoleptic compounds of such metals is by using extremely bulky ligands that prevent intermolecular coordination. One of the bulkiest siloxide ligands known is tris(trimethylsilyl)silyl, also known as hypersilyl (Niemeyer, 2006). While the hypersiloxide (Boyle et al., 2018) could potentially have enough steric bulk to enable a homoleptic monomeric aluminum alkoxide to be prepared, we isolated a dimer of a KCl addition compound, dimerized through potassium and chlorine. The title compound was the only product that crystallized, but there were other products present, and these products decomposed during an attempt at If less bulky, and thus more volatile, aluminum siloxides or can form a stable soluble KCl adducts, which could lead to a means of solubilizing alkali metal halides from organometallic reactions without using protic solvents.
and siloxides of electropositive metals with empty2. Structural commentary
Each tris(hypersiloxy)chloroaluminate ion is joined into the dimeric structure by a K+ ion coordinated to the chlorine atoms and one of the siloxy oxygen atoms, O1 (Fig. 1). The K2Cl2 ring is constrained by symmetry to be planar as it is on an inversion center, but the adjoined four-membered K1–Cl1–O1–Al1 rings deviate slightly from planarity, with the angle between the K2Cl2 plane and mean K1–Cl1–Al1–O1 planes being 47.8 (1)°. The coordination around the aluminum atom is approximately tetrahedral with angles ranging from 100.32 (6) to 114.63 (8)°. Both Al—O bonds to the terminal siloxy ligands are 1.711 (1) Å, and the Al1—O1 bond is slightly longer at 1.746 (1) Å, within the normal range for aluminum siloxides. In a series of aluminum complexes of silanediols, terminal Al—O bonds ranged from 1.709 (2) to 1.781 (4) Å, and all Al—O bonds to siloxide oxygen atoms bridging between aluminum atoms were longer than 1.8 Å (Krempner et al., 2007). Likewise, the aluminum phenylsiloxide Al(OSiPh3)3(THF) with all terminal siloxides has Al—O bond lengths ranging from 1.696 (5) to 1.709 (5) Å (Apblett et al. 1992).
K2Cl2 rings in organometallic complexes can be isolated or part of larger K—Cl assemblages. For isolated K2Cl2 rings, both planar and puckered rings are known, with planar rings lying on an inversion center the most common. The K—Cl distances in the title compound at 3.1131 (8) and 3.319 (3) Å are normal for this kind of feature, and the ring angles of 77.41 (2) and 102.60 (2)° around K and Cl, respectively, are typical for this kind of ring. Reported examples of similar features are in K[GaCl]{Co2(CO)6(μ-CO)}{Co(CO)4}, which has K—Cl distances of 3.129 (1) and 3.197 (1) Å and angles of 73.82 (3) and 106.18 (3)° (Leiner et al., 2002), and in a chloroaluminate complex [K—Cl distances of 3.160 (2) and 3.192 (1) Å and angles of 75.66 (3) and 104.24 (4)°; Abdalla, et al., 2015].
3. Supramolecular features
The molecule is completely surrounded by ligands and thus there are no supramolecular features.
4. Database survey
A search of the Cambridge Structural Database (V 5.38, update May 2017; Groom et al., 2016) for Al siloxides produced 255 hits, and the most common moieties have either phenyl or methyl attached to the silicon. However, no aluminum complexes of the tris(trimethylsilyl)siloxy ligand were found. The closest analogs are some complexes of chelating silanediols HO(Me3Si)2SiSi(SiMe3)2OH and HO(Me)[(Me3Si)3Si]SiSi[Si(SiMe3)3](Me)OH (Krempner et al., 2007). A search for a tri(organosilyl)siloxy ligand attached to a metal produced six unique hits. These include FeII and CoII complexes (Kornev et al., 1997 and Chesnokova et al., 2002), lanthanide(III) complexes (Kornev et al., 1999), and TaV complexes (Wu et al., 2002).
5. Synthesis and crystallization
Hypersilanol was prepared by literature methods (Gilman & Harrell, 1966). The silanol HOSi(SiMe3)3 (3.00 g, 11.3 mmol) was mixed with KH (0.45 g, 11.2 mmol) and dry heptane (15 mL) in a reaction bulb equipped with a Kontes valve in an argon-filled drybox. After 1 day, sublimed AlCl3 (0.50 g, 3.75 mmol) was added to the bulb with another 5 mL of heptane, and the bulb was sonicated for 1 day in a bath sonicator. The reaction was returned to the drybox and filtration was attempted through a fine frit. The frit clogged after a small amount of filtrate went through. Filtration was resumed through 1 cm diameter PTFE membranes with a nominal 0.22 µm size. The membrane had to be changed twice, but filtration was finally completed after two weeks. Crystals of the title compound grew in the filtrate (64 mg isolated). The liquid was decanted from the crystals, the solvent removed, leaving a semi-solid mixture. An attempt at resulted in decomposition.
A repeat preparation using the same quantities of reactants in 40 mL heptane was sonicated for 3 h and then stirred at 338 K overnight. The mixture was filtered through a 47 mm diameter 0.22 µm PVDF filter membrane, and the filtrate pumped to a white solid, whose NMR showed multiple products. This white solid was recrystallized from a minimum amount of hot heptane under argon, affording 1.335 g (40%) of colorless crystals of the title compound. NMR (C6D6): 1H δ0.36; 13C 3.36; 29Si −22.39 (Si), −18.36 (SiMe3).
6. Refinement
Crystal data, data collection and structure .
details are summarized in Table 1Supporting information
CCDC reference: 1910627
https://doi.org/10.1107/S2056989019005310/nk2251sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989019005310/nk2251Isup2.hkl
Data collection: CrysAlis PRO (Agilent, 2014); cell
CrysAlis PRO (Agilent, 2014); data reduction: CrysAlis PRO (Agilent, 2014); program(s) used to solve structure: SHELXT (Sheldrick, 2015a); program(s) used to refine structure: SHELXL2016 (Sheldrick, 2015b); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).[Al2K2Cl2(C19H27OSi4)6] | F(000) = 1936 |
Mr = 1785.05 | Dx = 1.083 Mg m−3 |
Monoclinic, P21/n | Cu Kα radiation, λ = 1.54184 Å |
a = 18.8247 (3) Å | Cell parameters from 9927 reflections |
b = 13.8850 (2) Å | θ = 4.0–71.3° |
c = 22.2056 (4) Å | µ = 4.16 mm−1 |
β = 109.413 (2)° | T = 173 K |
V = 5474.14 (17) Å3 | Block, colorless |
Z = 2 | 0.37 × 0.31 × 0.24 mm |
Agilent Xcalibur Eos Gemini diffractometer | 10450 independent reflections |
Radiation source: Enhance (Cu) X-ray Source | 8699 reflections with I > 2σ(I) |
Detector resolution: 16.0416 pixels mm-1 | Rint = 0.035 |
ω scans | θmax = 71.4°, θmin = 3.8° |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2014) | h = −23→19 |
Tmin = 0.441, Tmax = 1.000 | k = −16→16 |
25914 measured reflections | l = −27→25 |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.042 | H-atom parameters constrained |
wR(F2) = 0.117 | w = 1/[σ2(Fo2) + (0.0711P)2 + 0.624P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max = 0.001 |
10450 reflections | Δρmax = 0.76 e Å−3 |
433 parameters | Δρmin = −0.28 e Å−3 |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
x | y | z | Uiso*/Ueq | ||
K1 | 0.57420 (3) | 0.37104 (4) | 0.48201 (3) | 0.04295 (14) | |
Cl1 | 0.47952 (3) | 0.53645 (4) | 0.41286 (3) | 0.03676 (13) | |
Si1 | 0.73143 (3) | 0.46759 (4) | 0.44589 (3) | 0.02465 (12) | |
Si2 | 0.57625 (3) | 0.80409 (4) | 0.38317 (3) | 0.02508 (13) | |
Si3 | 0.47806 (3) | 0.47751 (4) | 0.23042 (3) | 0.02570 (13) | |
Si11 | 0.76601 (4) | 0.30398 (5) | 0.44632 (3) | 0.03327 (14) | |
Si12 | 0.77130 (4) | 0.51357 (5) | 0.55459 (3) | 0.03630 (15) | |
Si13 | 0.79768 (3) | 0.55732 (5) | 0.39166 (3) | 0.03275 (14) | |
Si21 | 0.44683 (3) | 0.83662 (5) | 0.33310 (3) | 0.03364 (14) | |
Si22 | 0.63846 (4) | 0.88865 (5) | 0.32264 (4) | 0.04016 (16) | |
Si23 | 0.61445 (4) | 0.86915 (5) | 0.48644 (3) | 0.03486 (15) | |
Si31 | 0.52190 (4) | 0.31699 (5) | 0.23980 (3) | 0.03842 (16) | |
Si32 | 0.48618 (3) | 0.54112 (5) | 0.13426 (3) | 0.03018 (14) | |
Si33 | 0.34999 (4) | 0.46420 (5) | 0.22239 (3) | 0.03741 (16) | |
Al1 | 0.56972 (3) | 0.56860 (4) | 0.37091 (3) | 0.02094 (13) | |
O1 | 0.63984 (8) | 0.48937 (10) | 0.41485 (7) | 0.0261 (3) | |
O2 | 0.59216 (8) | 0.68797 (10) | 0.38410 (7) | 0.0278 (3) | |
O3 | 0.53047 (8) | 0.53867 (11) | 0.29203 (7) | 0.0288 (3) | |
C111 | 0.75888 (18) | 0.2512 (2) | 0.36675 (14) | 0.0534 (7) | |
H11A | 0.780011 | 0.186011 | 0.372780 | 0.080* | |
H11B | 0.787022 | 0.291510 | 0.346281 | 0.080* | |
H11C | 0.705870 | 0.248551 | 0.339614 | 0.080* | |
C112 | 0.71162 (17) | 0.22111 (19) | 0.48223 (13) | 0.0451 (6) | |
H11D | 0.735733 | 0.157629 | 0.489608 | 0.068* | |
H11E | 0.659848 | 0.214767 | 0.452859 | 0.068* | |
H11F | 0.710990 | 0.247837 | 0.522896 | 0.068* | |
C113 | 0.86772 (16) | 0.2993 (2) | 0.49849 (15) | 0.0540 (7) | |
H11G | 0.884887 | 0.232238 | 0.503648 | 0.081* | |
H11H | 0.873035 | 0.326784 | 0.540422 | 0.081* | |
H11I | 0.898232 | 0.336493 | 0.478592 | 0.081* | |
C121 | 0.76369 (18) | 0.4170 (2) | 0.61159 (12) | 0.0530 (7) | |
H12A | 0.779474 | 0.443114 | 0.655056 | 0.080* | |
H12B | 0.796250 | 0.362763 | 0.609887 | 0.080* | |
H12C | 0.711370 | 0.394934 | 0.599518 | 0.080* | |
C122 | 0.8713 (2) | 0.5559 (3) | 0.58315 (15) | 0.0752 (12) | |
H12D | 0.884643 | 0.578207 | 0.627406 | 0.113* | |
H12E | 0.877071 | 0.609061 | 0.556098 | 0.113* | |
H12F | 0.904521 | 0.502731 | 0.580911 | 0.113* | |
C123 | 0.7030 (3) | 0.6105 (3) | 0.55869 (17) | 0.0743 (11) | |
H12G | 0.724758 | 0.648099 | 0.597890 | 0.111* | |
H12H | 0.655816 | 0.580877 | 0.558750 | 0.111* | |
H12I | 0.693022 | 0.653051 | 0.521565 | 0.111* | |
C131 | 0.74560 (17) | 0.5443 (2) | 0.30394 (12) | 0.0478 (6) | |
H13A | 0.767512 | 0.587768 | 0.280079 | 0.072* | |
H13B | 0.692443 | 0.560660 | 0.295038 | 0.072* | |
H13C | 0.749622 | 0.477677 | 0.290865 | 0.072* | |
C132 | 0.79786 (18) | 0.6873 (2) | 0.41371 (15) | 0.0513 (7) | |
H13D | 0.818651 | 0.725943 | 0.386573 | 0.077* | |
H13E | 0.828843 | 0.696002 | 0.458561 | 0.077* | |
H13F | 0.746187 | 0.708185 | 0.407553 | 0.077* | |
C133 | 0.89776 (16) | 0.5175 (3) | 0.40851 (17) | 0.0598 (8) | |
H13G | 0.922440 | 0.560244 | 0.386404 | 0.090* | |
H13H | 0.898381 | 0.451353 | 0.393329 | 0.090* | |
H13I | 0.924675 | 0.520185 | 0.454585 | 0.090* | |
C211 | 0.38795 (14) | 0.77173 (19) | 0.37411 (14) | 0.0448 (6) | |
H21A | 0.334764 | 0.775116 | 0.347502 | 0.067* | |
H21B | 0.394737 | 0.802112 | 0.415485 | 0.067* | |
H21C | 0.403673 | 0.704162 | 0.380699 | 0.067* | |
C212 | 0.42149 (18) | 0.7911 (2) | 0.24922 (13) | 0.0543 (7) | |
H21D | 0.367071 | 0.797614 | 0.227717 | 0.082* | |
H21E | 0.435827 | 0.723211 | 0.249816 | 0.082* | |
H21F | 0.448313 | 0.828807 | 0.226233 | 0.082* | |
C213 | 0.41897 (17) | 0.9676 (2) | 0.33006 (18) | 0.0574 (8) | |
H21G | 0.367020 | 0.975242 | 0.301292 | 0.086* | |
H21H | 0.452743 | 1.006107 | 0.314321 | 0.086* | |
H21I | 0.422672 | 0.989346 | 0.372975 | 0.086* | |
C221 | 0.6506 (2) | 0.8050 (2) | 0.26151 (17) | 0.0658 (9) | |
H22A | 0.673766 | 0.839512 | 0.234291 | 0.099* | |
H22B | 0.601304 | 0.780109 | 0.235263 | 0.099* | |
H22C | 0.683072 | 0.751315 | 0.282708 | 0.099* | |
C222 | 0.5826 (2) | 0.9958 (2) | 0.2800 (2) | 0.0682 (10) | |
H22D | 0.610576 | 1.028923 | 0.255949 | 0.102* | |
H22E | 0.574274 | 1.040142 | 0.311312 | 0.102* | |
H22F | 0.533950 | 0.974001 | 0.250513 | 0.102* | |
C223 | 0.73237 (18) | 0.9395 (2) | 0.37176 (19) | 0.0645 (9) | |
H22G | 0.757250 | 0.967287 | 0.343418 | 0.097* | |
H22H | 0.763844 | 0.888025 | 0.397332 | 0.097* | |
H22I | 0.724997 | 0.989669 | 0.400156 | 0.097* | |
C231 | 0.56436 (17) | 0.8067 (2) | 0.53611 (13) | 0.0477 (6) | |
H23A | 0.584952 | 0.829141 | 0.580392 | 0.072* | |
H23B | 0.571624 | 0.736987 | 0.534685 | 0.072* | |
H23C | 0.510450 | 0.821594 | 0.519109 | 0.072* | |
C232 | 0.5892 (2) | 1.00077 (19) | 0.47939 (16) | 0.0545 (7) | |
H23D | 0.606557 | 1.030377 | 0.521865 | 0.082* | |
H23E | 0.534465 | 1.007830 | 0.460654 | 0.082* | |
H23F | 0.613525 | 1.032639 | 0.451989 | 0.082* | |
C233 | 0.71955 (18) | 0.8631 (3) | 0.52913 (16) | 0.0627 (8) | |
H23G | 0.730299 | 0.874770 | 0.574827 | 0.094* | |
H23H | 0.744673 | 0.912297 | 0.511712 | 0.094* | |
H23I | 0.738178 | 0.799260 | 0.522965 | 0.094* | |
C311 | 0.4504 (2) | 0.2270 (2) | 0.19217 (15) | 0.0671 (10) | |
H31A | 0.474201 | 0.163627 | 0.194905 | 0.101* | |
H31B | 0.430846 | 0.247478 | 0.147429 | 0.101* | |
H31C | 0.408789 | 0.222938 | 0.209386 | 0.101* | |
C312 | 0.6072 (2) | 0.3029 (2) | 0.21447 (15) | 0.0596 (8) | |
H31D | 0.628708 | 0.238580 | 0.226263 | 0.089* | |
H31E | 0.644708 | 0.351717 | 0.235836 | 0.089* | |
H31F | 0.592593 | 0.311132 | 0.168107 | 0.089* | |
C313 | 0.54652 (17) | 0.28382 (19) | 0.32684 (12) | 0.0446 (6) | |
H31G | 0.564946 | 0.217323 | 0.333273 | 0.067* | |
H31H | 0.501596 | 0.289644 | 0.339574 | 0.067* | |
H31I | 0.585781 | 0.327295 | 0.352851 | 0.067* | |
C321 | 0.4486 (2) | 0.4501 (2) | 0.06848 (13) | 0.0594 (8) | |
H32A | 0.455440 | 0.474287 | 0.029288 | 0.089* | |
H32B | 0.394937 | 0.439418 | 0.061008 | 0.089* | |
H32C | 0.476025 | 0.389309 | 0.080909 | 0.089* | |
C322 | 0.43252 (19) | 0.6563 (2) | 0.10763 (14) | 0.0564 (7) | |
H32D | 0.436173 | 0.675891 | 0.066364 | 0.085* | |
H32E | 0.453887 | 0.706765 | 0.139331 | 0.085* | |
H32F | 0.379520 | 0.646261 | 0.103305 | 0.085* | |
C323 | 0.58614 (15) | 0.5661 (3) | 0.14213 (14) | 0.0519 (7) | |
H32G | 0.588707 | 0.589139 | 0.101178 | 0.078* | |
H32H | 0.615790 | 0.506953 | 0.154461 | 0.078* | |
H32I | 0.606491 | 0.615507 | 0.174890 | 0.078* | |
C331 | 0.33467 (19) | 0.3778 (3) | 0.28202 (14) | 0.0657 (10) | |
H33A | 0.280583 | 0.371597 | 0.274680 | 0.099* | |
H33B | 0.360012 | 0.402047 | 0.325314 | 0.099* | |
H33C | 0.355427 | 0.314680 | 0.277160 | 0.099* | |
C332 | 0.29642 (15) | 0.4164 (2) | 0.14070 (12) | 0.0471 (6) | |
H33D | 0.242748 | 0.412544 | 0.135569 | 0.071* | |
H33E | 0.315193 | 0.352144 | 0.135671 | 0.071* | |
H33F | 0.303400 | 0.459714 | 0.108249 | 0.071* | |
C333 | 0.30521 (16) | 0.5810 (3) | 0.23174 (17) | 0.0604 (8) | |
H33G | 0.252048 | 0.570193 | 0.226489 | 0.091* | |
H33H | 0.309020 | 0.626685 | 0.199285 | 0.091* | |
H33I | 0.331125 | 0.607448 | 0.274338 | 0.091* |
U11 | U22 | U33 | U12 | U13 | U23 | |
K1 | 0.0524 (3) | 0.0352 (3) | 0.0494 (3) | 0.0059 (2) | 0.0278 (3) | 0.0117 (2) |
Cl1 | 0.0353 (3) | 0.0404 (3) | 0.0420 (3) | 0.0060 (2) | 0.0228 (2) | 0.0082 (2) |
Si1 | 0.0240 (3) | 0.0245 (3) | 0.0269 (3) | 0.0041 (2) | 0.0104 (2) | 0.0041 (2) |
Si2 | 0.0270 (3) | 0.0184 (3) | 0.0336 (3) | −0.0010 (2) | 0.0153 (2) | −0.0031 (2) |
Si3 | 0.0269 (3) | 0.0277 (3) | 0.0226 (3) | −0.0050 (2) | 0.0083 (2) | −0.0025 (2) |
Si11 | 0.0381 (3) | 0.0288 (3) | 0.0358 (3) | 0.0127 (2) | 0.0162 (3) | 0.0085 (2) |
Si12 | 0.0408 (3) | 0.0391 (4) | 0.0291 (3) | 0.0003 (3) | 0.0117 (3) | −0.0002 (3) |
Si13 | 0.0298 (3) | 0.0355 (3) | 0.0379 (3) | 0.0023 (2) | 0.0178 (2) | 0.0055 (3) |
Si21 | 0.0303 (3) | 0.0282 (3) | 0.0436 (3) | 0.0052 (2) | 0.0138 (3) | 0.0051 (3) |
Si22 | 0.0499 (4) | 0.0252 (3) | 0.0597 (4) | 0.0017 (3) | 0.0375 (3) | 0.0051 (3) |
Si23 | 0.0404 (3) | 0.0271 (3) | 0.0401 (3) | −0.0048 (2) | 0.0175 (3) | −0.0115 (3) |
Si31 | 0.0528 (4) | 0.0270 (3) | 0.0310 (3) | −0.0010 (3) | 0.0079 (3) | −0.0054 (2) |
Si32 | 0.0312 (3) | 0.0366 (3) | 0.0236 (3) | −0.0053 (2) | 0.0103 (2) | −0.0019 (2) |
Si33 | 0.0304 (3) | 0.0495 (4) | 0.0332 (3) | −0.0151 (3) | 0.0118 (2) | −0.0052 (3) |
Al1 | 0.0223 (3) | 0.0180 (3) | 0.0226 (3) | 0.0010 (2) | 0.0075 (2) | −0.0008 (2) |
O1 | 0.0240 (7) | 0.0234 (7) | 0.0308 (7) | 0.0039 (5) | 0.0088 (6) | 0.0026 (6) |
O2 | 0.0302 (7) | 0.0190 (7) | 0.0343 (7) | −0.0003 (6) | 0.0108 (6) | −0.0037 (6) |
O3 | 0.0320 (7) | 0.0294 (8) | 0.0238 (7) | −0.0048 (6) | 0.0075 (6) | −0.0048 (6) |
C111 | 0.0675 (18) | 0.0499 (17) | 0.0515 (15) | 0.0184 (14) | 0.0315 (14) | −0.0021 (13) |
C112 | 0.0609 (16) | 0.0307 (13) | 0.0491 (14) | 0.0054 (11) | 0.0257 (12) | 0.0119 (11) |
C113 | 0.0431 (14) | 0.0533 (17) | 0.0627 (17) | 0.0198 (13) | 0.0135 (13) | 0.0171 (14) |
C121 | 0.0633 (17) | 0.0625 (19) | 0.0324 (12) | 0.0003 (15) | 0.0146 (12) | 0.0096 (13) |
C122 | 0.065 (2) | 0.107 (3) | 0.0441 (16) | −0.042 (2) | 0.0053 (15) | −0.0160 (18) |
C123 | 0.118 (3) | 0.058 (2) | 0.0582 (19) | 0.032 (2) | 0.045 (2) | 0.0017 (16) |
C131 | 0.0582 (16) | 0.0527 (16) | 0.0373 (13) | 0.0033 (13) | 0.0224 (12) | 0.0050 (12) |
C132 | 0.0608 (17) | 0.0366 (14) | 0.0649 (17) | −0.0077 (12) | 0.0322 (14) | 0.0028 (13) |
C133 | 0.0366 (14) | 0.076 (2) | 0.075 (2) | 0.0113 (14) | 0.0303 (14) | 0.0167 (17) |
C211 | 0.0378 (12) | 0.0379 (14) | 0.0663 (17) | 0.0050 (10) | 0.0275 (12) | 0.0052 (12) |
C212 | 0.0565 (16) | 0.0589 (18) | 0.0407 (14) | −0.0038 (14) | 0.0069 (12) | 0.0012 (13) |
C213 | 0.0492 (16) | 0.0353 (15) | 0.090 (2) | 0.0140 (12) | 0.0258 (16) | 0.0115 (14) |
C221 | 0.099 (3) | 0.0534 (19) | 0.070 (2) | 0.0097 (17) | 0.061 (2) | 0.0019 (16) |
C222 | 0.081 (2) | 0.0392 (16) | 0.105 (3) | 0.0161 (15) | 0.058 (2) | 0.0314 (17) |
C223 | 0.0545 (17) | 0.0474 (17) | 0.105 (3) | −0.0157 (14) | 0.0445 (18) | 0.0011 (17) |
C231 | 0.0620 (16) | 0.0406 (14) | 0.0496 (14) | 0.0032 (12) | 0.0305 (13) | −0.0003 (12) |
C232 | 0.078 (2) | 0.0283 (13) | 0.0685 (18) | −0.0056 (13) | 0.0391 (16) | −0.0143 (13) |
C233 | 0.0481 (16) | 0.066 (2) | 0.0626 (19) | −0.0140 (15) | 0.0029 (14) | −0.0167 (16) |
C311 | 0.093 (3) | 0.0316 (14) | 0.0540 (17) | −0.0107 (15) | −0.0057 (16) | −0.0135 (13) |
C312 | 0.077 (2) | 0.0561 (19) | 0.0505 (16) | 0.0246 (16) | 0.0274 (15) | 0.0020 (14) |
C313 | 0.0589 (16) | 0.0329 (13) | 0.0356 (12) | −0.0020 (11) | 0.0071 (11) | 0.0028 (10) |
C321 | 0.080 (2) | 0.066 (2) | 0.0346 (13) | −0.0285 (17) | 0.0223 (14) | −0.0183 (13) |
C322 | 0.0623 (18) | 0.0596 (19) | 0.0481 (15) | 0.0176 (15) | 0.0195 (14) | 0.0193 (14) |
C323 | 0.0360 (13) | 0.076 (2) | 0.0490 (15) | −0.0073 (13) | 0.0212 (11) | 0.0049 (14) |
C331 | 0.0564 (17) | 0.097 (3) | 0.0460 (15) | −0.0347 (18) | 0.0200 (13) | 0.0073 (16) |
C332 | 0.0406 (13) | 0.0558 (17) | 0.0375 (12) | −0.0154 (12) | 0.0033 (10) | −0.0077 (12) |
C333 | 0.0378 (14) | 0.071 (2) | 0.077 (2) | −0.0106 (14) | 0.0254 (14) | −0.0253 (17) |
K1—O1 | 2.7703 (16) | C123—H12G | 0.9800 |
K1—Cl1 | 2.9984 (8) | C123—H12H | 0.9800 |
K1—Cl1i | 3.1131 (8) | C123—H12I | 0.9800 |
K1—C112 | 3.319 (3) | C131—H13A | 0.9800 |
K1—C231i | 3.516 (3) | C131—H13B | 0.9800 |
K1—C313 | 3.524 (3) | C131—H13C | 0.9800 |
K1—Si1 | 3.5747 (8) | C132—H13D | 0.9800 |
K1—Al1 | 3.6714 (8) | C132—H13E | 0.9800 |
K1—K1i | 4.7699 (11) | C132—H13F | 0.9800 |
Cl1—Al1 | 2.2366 (7) | C133—H13G | 0.9800 |
Si1—O1 | 1.6581 (14) | C133—H13H | 0.9800 |
Si1—Si13 | 2.3573 (8) | C133—H13I | 0.9800 |
Si1—Si11 | 2.3623 (8) | C211—H21A | 0.9800 |
Si1—Si12 | 2.3648 (8) | C211—H21B | 0.9800 |
Si2—O2 | 1.6387 (15) | C211—H21C | 0.9800 |
Si2—Si23 | 2.3443 (8) | C212—H21D | 0.9800 |
Si2—Si21 | 2.3612 (8) | C212—H21E | 0.9800 |
Si2—Si22 | 2.3670 (8) | C212—H21F | 0.9800 |
Si3—O3 | 1.6337 (15) | C213—H21G | 0.9800 |
Si3—Si31 | 2.3617 (9) | C213—H21H | 0.9800 |
Si3—Si32 | 2.3623 (8) | C213—H21I | 0.9800 |
Si3—Si33 | 2.3648 (8) | C221—H22A | 0.9800 |
Si11—C111 | 1.876 (3) | C221—H22B | 0.9800 |
Si11—C113 | 1.881 (3) | C221—H22C | 0.9800 |
Si11—C112 | 1.884 (3) | C222—H22D | 0.9800 |
Si12—C122 | 1.870 (3) | C222—H22E | 0.9800 |
Si12—C121 | 1.882 (3) | C222—H22F | 0.9800 |
Si12—C123 | 1.884 (3) | C223—H22G | 0.9800 |
Si13—C132 | 1.870 (3) | C223—H22H | 0.9800 |
Si13—C131 | 1.876 (3) | C223—H22I | 0.9800 |
Si13—C133 | 1.878 (3) | C231—H23A | 0.9800 |
Si21—C212 | 1.872 (3) | C231—H23B | 0.9800 |
Si21—C211 | 1.882 (3) | C231—H23C | 0.9800 |
Si21—C213 | 1.887 (3) | C232—H23D | 0.9800 |
Si22—C221 | 1.857 (3) | C232—H23E | 0.9800 |
Si22—C223 | 1.879 (3) | C232—H23F | 0.9800 |
Si22—C222 | 1.885 (3) | C233—H23G | 0.9800 |
Si23—C232 | 1.882 (3) | C233—H23H | 0.9800 |
Si23—C231 | 1.884 (3) | C233—H23I | 0.9800 |
Si23—C233 | 1.890 (3) | C311—H31A | 0.9800 |
Si31—C312 | 1.879 (3) | C311—H31B | 0.9800 |
Si31—C311 | 1.884 (3) | C311—H31C | 0.9800 |
Si31—C313 | 1.889 (3) | C312—H31D | 0.9800 |
Si32—C323 | 1.864 (3) | C312—H31E | 0.9800 |
Si32—C322 | 1.879 (3) | C312—H31F | 0.9800 |
Si32—C321 | 1.882 (3) | C313—H31G | 0.9800 |
Si33—C333 | 1.871 (3) | C313—H31H | 0.9800 |
Si33—C331 | 1.879 (3) | C313—H31I | 0.9800 |
Si33—C332 | 1.879 (2) | C321—H32A | 0.9800 |
Al1—O3 | 1.7107 (14) | C321—H32B | 0.9800 |
Al1—O2 | 1.7115 (15) | C321—H32C | 0.9800 |
Al1—O1 | 1.7459 (15) | C322—H32D | 0.9800 |
C111—H11A | 0.9800 | C322—H32E | 0.9800 |
C111—H11B | 0.9800 | C322—H32F | 0.9800 |
C111—H11C | 0.9800 | C323—H32G | 0.9800 |
C112—H11D | 0.9800 | C323—H32H | 0.9800 |
C112—H11E | 0.9800 | C323—H32I | 0.9800 |
C112—H11F | 0.9800 | C331—H33A | 0.9800 |
C113—H11G | 0.9800 | C331—H33B | 0.9800 |
C113—H11H | 0.9800 | C331—H33C | 0.9800 |
C113—H11I | 0.9800 | C332—H33D | 0.9800 |
C121—H12A | 0.9800 | C332—H33E | 0.9800 |
C121—H12B | 0.9800 | C332—H33F | 0.9800 |
C121—H12C | 0.9800 | C333—H33G | 0.9800 |
C122—H12D | 0.9800 | C333—H33H | 0.9800 |
C122—H12E | 0.9800 | C333—H33I | 0.9800 |
C122—H12F | 0.9800 | ||
O1—K1—Cl1 | 64.26 (3) | Si12—C121—H12A | 109.5 |
O1—K1—Cl1i | 118.23 (4) | Si12—C121—H12B | 109.5 |
Cl1—K1—Cl1i | 77.41 (2) | H12A—C121—H12B | 109.5 |
O1—K1—C112 | 83.45 (5) | Si12—C121—H12C | 109.5 |
Cl1—K1—C112 | 144.25 (5) | H12A—C121—H12C | 109.5 |
Cl1i—K1—C112 | 134.82 (5) | H12B—C121—H12C | 109.5 |
O1—K1—C231i | 143.27 (6) | Si12—C122—H12D | 109.5 |
Cl1—K1—C231i | 100.78 (5) | Si12—C122—H12E | 109.5 |
Cl1i—K1—C231i | 87.82 (5) | H12D—C122—H12E | 109.5 |
C112—K1—C231i | 96.20 (7) | Si12—C122—H12F | 109.5 |
O1—K1—C313 | 67.97 (6) | H12D—C122—H12F | 109.5 |
Cl1—K1—C313 | 83.86 (5) | H12E—C122—H12F | 109.5 |
Cl1i—K1—C313 | 153.60 (5) | Si12—C123—H12G | 109.5 |
C112—K1—C313 | 69.38 (7) | Si12—C123—H12H | 109.5 |
C231i—K1—C313 | 77.51 (7) | H12G—C123—H12H | 109.5 |
O1—K1—Si1 | 26.64 (3) | Si12—C123—H12I | 109.5 |
Cl1—K1—Si1 | 89.626 (18) | H12G—C123—H12I | 109.5 |
Cl1i—K1—Si1 | 120.87 (2) | H12H—C123—H12I | 109.5 |
C112—K1—Si1 | 62.13 (5) | Si13—C131—H13A | 109.5 |
C231i—K1—Si1 | 151.13 (5) | Si13—C131—H13B | 109.5 |
C313—K1—Si1 | 76.93 (5) | H13A—C131—H13B | 109.5 |
O1—K1—Al1 | 27.12 (3) | Si13—C131—H13C | 109.5 |
Cl1—K1—Al1 | 37.498 (14) | H13A—C131—H13C | 109.5 |
Cl1i—K1—Al1 | 104.77 (2) | H13B—C131—H13C | 109.5 |
C112—K1—Al1 | 108.27 (5) | Si13—C132—H13D | 109.5 |
C231i—K1—Al1 | 126.67 (5) | Si13—C132—H13E | 109.5 |
C313—K1—Al1 | 68.71 (4) | H13D—C132—H13E | 109.5 |
Si1—K1—Al1 | 53.478 (14) | Si13—C132—H13F | 109.5 |
O1—K1—K1i | 92.05 (3) | H13D—C132—H13F | 109.5 |
Cl1—K1—K1i | 39.564 (13) | H13E—C132—H13F | 109.5 |
Cl1i—K1—K1i | 37.842 (13) | Si13—C133—H13G | 109.5 |
C112—K1—K1i | 165.98 (6) | Si13—C133—H13H | 109.5 |
C231i—K1—K1i | 95.32 (5) | H13G—C133—H13H | 109.5 |
C313—K1—K1i | 121.15 (5) | Si13—C133—H13I | 109.5 |
Si1—K1—K1i | 109.31 (2) | H13G—C133—H13I | 109.5 |
Al1—K1—K1i | 70.590 (15) | H13H—C133—H13I | 109.5 |
Al1—Cl1—K1 | 87.81 (2) | Si21—C211—H21A | 109.5 |
Al1—Cl1—K1i | 135.30 (3) | Si21—C211—H21B | 109.5 |
K1—Cl1—K1i | 102.60 (2) | H21A—C211—H21B | 109.5 |
O1—Si1—Si13 | 110.18 (6) | Si21—C211—H21C | 109.5 |
O1—Si1—Si11 | 115.10 (6) | H21A—C211—H21C | 109.5 |
Si13—Si1—Si11 | 108.57 (3) | H21B—C211—H21C | 109.5 |
O1—Si1—Si12 | 107.96 (6) | Si21—C212—H21D | 109.5 |
Si13—Si1—Si12 | 109.66 (3) | Si21—C212—H21E | 109.5 |
Si11—Si1—Si12 | 105.19 (3) | H21D—C212—H21E | 109.5 |
O1—Si1—K1 | 48.51 (5) | Si21—C212—H21F | 109.5 |
Si13—Si1—K1 | 158.58 (3) | H21D—C212—H21F | 109.5 |
Si11—Si1—K1 | 83.46 (2) | H21E—C212—H21F | 109.5 |
Si12—Si1—K1 | 82.98 (2) | Si21—C213—H21G | 109.5 |
O2—Si2—Si23 | 111.81 (6) | Si21—C213—H21H | 109.5 |
O2—Si2—Si21 | 110.47 (6) | H21G—C213—H21H | 109.5 |
Si23—Si2—Si21 | 108.66 (3) | Si21—C213—H21I | 109.5 |
O2—Si2—Si22 | 111.86 (6) | H21G—C213—H21I | 109.5 |
Si23—Si2—Si22 | 108.39 (3) | H21H—C213—H21I | 109.5 |
Si21—Si2—Si22 | 105.39 (3) | Si22—C221—H22A | 109.5 |
O3—Si3—Si31 | 108.71 (6) | Si22—C221—H22B | 109.5 |
O3—Si3—Si32 | 111.10 (6) | H22A—C221—H22B | 109.5 |
Si31—Si3—Si32 | 107.87 (3) | Si22—C221—H22C | 109.5 |
O3—Si3—Si33 | 114.87 (6) | H22A—C221—H22C | 109.5 |
Si31—Si3—Si33 | 104.51 (3) | H22B—C221—H22C | 109.5 |
Si32—Si3—Si33 | 109.37 (3) | Si22—C222—H22D | 109.5 |
C111—Si11—C113 | 107.83 (14) | Si22—C222—H22E | 109.5 |
C111—Si11—C112 | 106.33 (14) | H22D—C222—H22E | 109.5 |
C113—Si11—C112 | 107.66 (13) | Si22—C222—H22F | 109.5 |
C111—Si11—Si1 | 116.00 (10) | H22D—C222—H22F | 109.5 |
C113—Si11—Si1 | 104.97 (10) | H22E—C222—H22F | 109.5 |
C112—Si11—Si1 | 113.65 (9) | Si22—C223—H22G | 109.5 |
C122—Si12—C121 | 106.80 (16) | Si22—C223—H22H | 109.5 |
C122—Si12—C123 | 112.6 (2) | H22G—C223—H22H | 109.5 |
C121—Si12—C123 | 105.71 (16) | Si22—C223—H22I | 109.5 |
C122—Si12—Si1 | 111.92 (11) | H22G—C223—H22I | 109.5 |
C121—Si12—Si1 | 115.15 (10) | H22H—C223—H22I | 109.5 |
C123—Si12—Si1 | 104.60 (12) | Si23—C231—K1i | 138.83 (13) |
C132—Si13—C131 | 108.65 (14) | Si23—C231—H23A | 109.5 |
C132—Si13—C133 | 108.52 (16) | K1i—C231—H23A | 111.6 |
C131—Si13—C133 | 108.79 (14) | Si23—C231—H23B | 109.5 |
C132—Si13—Si1 | 109.36 (9) | K1i—C231—H23B | 53.8 |
C131—Si13—Si1 | 107.27 (10) | H23A—C231—H23B | 109.5 |
C133—Si13—Si1 | 114.13 (11) | Si23—C231—H23C | 109.5 |
C212—Si21—C211 | 108.89 (14) | K1i—C231—H23C | 58.0 |
C212—Si21—C213 | 108.26 (16) | H23A—C231—H23C | 109.5 |
C211—Si21—C213 | 106.10 (13) | H23B—C231—H23C | 109.5 |
C212—Si21—Si2 | 106.61 (11) | Si23—C232—H23D | 109.5 |
C211—Si21—Si2 | 111.23 (9) | Si23—C232—H23E | 109.5 |
C213—Si21—Si2 | 115.60 (10) | H23D—C232—H23E | 109.5 |
C221—Si22—C223 | 109.79 (17) | Si23—C232—H23F | 109.5 |
C221—Si22—C222 | 108.03 (17) | H23D—C232—H23F | 109.5 |
C223—Si22—C222 | 104.79 (17) | H23E—C232—H23F | 109.5 |
C221—Si22—Si2 | 108.00 (11) | Si23—C233—H23G | 109.5 |
C223—Si22—Si2 | 113.84 (12) | Si23—C233—H23H | 109.5 |
C222—Si22—Si2 | 112.23 (11) | H23G—C233—H23H | 109.5 |
C232—Si23—C231 | 109.51 (13) | Si23—C233—H23I | 109.5 |
C232—Si23—C233 | 106.12 (15) | H23G—C233—H23I | 109.5 |
C231—Si23—C233 | 109.29 (15) | H23H—C233—H23I | 109.5 |
C232—Si23—Si2 | 107.82 (11) | Si31—C311—H31A | 109.5 |
C231—Si23—Si2 | 110.18 (9) | Si31—C311—H31B | 109.5 |
C233—Si23—Si2 | 113.77 (11) | H31A—C311—H31B | 109.5 |
C312—Si31—C311 | 106.59 (17) | Si31—C311—H31C | 109.5 |
C312—Si31—C313 | 109.72 (14) | H31A—C311—H31C | 109.5 |
C311—Si31—C313 | 107.41 (14) | H31B—C311—H31C | 109.5 |
C312—Si31—Si3 | 112.33 (11) | Si31—C312—H31D | 109.5 |
C311—Si31—Si3 | 114.40 (11) | Si31—C312—H31E | 109.5 |
C313—Si31—Si3 | 106.26 (9) | H31D—C312—H31E | 109.5 |
C323—Si32—C322 | 106.93 (15) | Si31—C312—H31F | 109.5 |
C323—Si32—C321 | 107.74 (15) | H31D—C312—H31F | 109.5 |
C322—Si32—C321 | 107.65 (16) | H31E—C312—H31F | 109.5 |
C323—Si32—Si3 | 110.59 (9) | Si31—C313—K1 | 145.40 (12) |
C322—Si32—Si3 | 114.41 (10) | Si31—C313—H31G | 109.5 |
C321—Si32—Si3 | 109.27 (10) | K1—C313—H31G | 104.6 |
C333—Si33—C331 | 107.17 (17) | Si31—C313—H31H | 109.5 |
C333—Si33—C332 | 107.22 (14) | K1—C313—H31H | 63.3 |
C331—Si33—C332 | 107.23 (14) | H31G—C313—H31H | 109.5 |
C333—Si33—Si3 | 114.17 (10) | Si31—C313—H31I | 109.5 |
C331—Si33—Si3 | 112.84 (11) | K1—C313—H31I | 51.3 |
C332—Si33—Si3 | 107.87 (9) | H31G—C313—H31I | 109.5 |
O3—Al1—O2 | 114.11 (8) | H31H—C313—H31I | 109.5 |
O3—Al1—O1 | 114.09 (8) | Si32—C321—H32A | 109.5 |
O2—Al1—O1 | 114.64 (7) | Si32—C321—H32B | 109.5 |
O3—Al1—Cl1 | 104.39 (6) | H32A—C321—H32B | 109.5 |
O2—Al1—Cl1 | 107.48 (6) | Si32—C321—H32C | 109.5 |
O1—Al1—Cl1 | 100.32 (6) | H32A—C321—H32C | 109.5 |
O3—Al1—K1 | 114.34 (6) | H32B—C321—H32C | 109.5 |
O2—Al1—K1 | 131.25 (6) | Si32—C322—H32D | 109.5 |
O1—Al1—K1 | 46.33 (5) | Si32—C322—H32E | 109.5 |
Cl1—Al1—K1 | 54.69 (2) | H32D—C322—H32E | 109.5 |
Si1—O1—Al1 | 146.69 (10) | Si32—C322—H32F | 109.5 |
Si1—O1—K1 | 104.85 (7) | H32D—C322—H32F | 109.5 |
Al1—O1—K1 | 106.56 (6) | H32E—C322—H32F | 109.5 |
Si2—O2—Al1 | 156.49 (10) | Si32—C323—H32G | 109.5 |
Si3—O3—Al1 | 156.75 (10) | Si32—C323—H32H | 109.5 |
Si11—C111—H11A | 109.5 | H32G—C323—H32H | 109.5 |
Si11—C111—H11B | 109.5 | Si32—C323—H32I | 109.5 |
H11A—C111—H11B | 109.5 | H32G—C323—H32I | 109.5 |
Si11—C111—H11C | 109.5 | H32H—C323—H32I | 109.5 |
H11A—C111—H11C | 109.5 | Si33—C331—H33A | 109.5 |
H11B—C111—H11C | 109.5 | Si33—C331—H33B | 109.5 |
Si11—C112—K1 | 98.58 (10) | H33A—C331—H33B | 109.5 |
Si11—C112—H11D | 109.5 | Si33—C331—H33C | 109.5 |
K1—C112—H11D | 151.9 | H33A—C331—H33C | 109.5 |
Si11—C112—H11E | 109.5 | H33B—C331—H33C | 109.5 |
K1—C112—H11E | 56.9 | Si33—C332—H33D | 109.5 |
H11D—C112—H11E | 109.5 | Si33—C332—H33E | 109.5 |
Si11—C112—H11F | 109.5 | H33D—C332—H33E | 109.5 |
K1—C112—H11F | 61.0 | Si33—C332—H33F | 109.5 |
H11D—C112—H11F | 109.5 | H33D—C332—H33F | 109.5 |
H11E—C112—H11F | 109.5 | H33E—C332—H33F | 109.5 |
Si11—C113—H11G | 109.5 | Si33—C333—H33G | 109.5 |
Si11—C113—H11H | 109.5 | Si33—C333—H33H | 109.5 |
H11G—C113—H11H | 109.5 | H33G—C333—H33H | 109.5 |
Si11—C113—H11I | 109.5 | Si33—C333—H33I | 109.5 |
H11G—C113—H11I | 109.5 | H33G—C333—H33I | 109.5 |
H11H—C113—H11I | 109.5 | H33H—C333—H33I | 109.5 |
Si13—Si1—O1—Al1 | −22.36 (19) | Cl1—Al1—O2—Si2 | −51.9 (3) |
Si11—Si1—O1—Al1 | −145.50 (15) | K1—Al1—O2—Si2 | −109.9 (2) |
Si12—Si1—O1—Al1 | 97.37 (17) | Si31—Si3—O3—Al1 | −62.1 (3) |
K1—Si1—O1—Al1 | 160.1 (2) | Si32—Si3—O3—Al1 | 179.4 (2) |
Si13—Si1—O1—K1 | 177.54 (4) | Si33—Si3—O3—Al1 | 54.6 (3) |
Si11—Si1—O1—K1 | 54.39 (7) | O2—Al1—O3—Si3 | −151.8 (3) |
Si12—Si1—O1—K1 | −62.73 (6) | O1—Al1—O3—Si3 | 73.8 (3) |
O3—Al1—O1—Si1 | 98.69 (18) | Cl1—Al1—O3—Si3 | −34.7 (3) |
O2—Al1—O1—Si1 | −35.5 (2) | K1—Al1—O3—Si3 | 22.7 (3) |
Cl1—Al1—O1—Si1 | −150.32 (16) | C111—Si11—C112—K1 | −114.26 (11) |
K1—Al1—O1—Si1 | −159.9 (2) | C113—Si11—C112—K1 | 130.39 (12) |
O3—Al1—O1—K1 | −101.38 (8) | Si1—Si11—C112—K1 | 14.58 (11) |
O2—Al1—O1—K1 | 124.41 (7) | C232—Si23—C231—K1i | 115.2 (2) |
Cl1—Al1—O1—K1 | 9.61 (6) | C233—Si23—C231—K1i | −129.0 (2) |
Si23—Si2—O2—Al1 | 118.7 (2) | Si2—Si23—C231—K1i | −3.3 (2) |
Si21—Si2—O2—Al1 | −2.4 (3) | C312—Si31—C313—K1 | 110.5 (2) |
Si22—Si2—O2—Al1 | −119.5 (2) | C311—Si31—C313—K1 | −134.0 (2) |
O3—Al1—O2—Si2 | 63.4 (3) | Si3—Si31—C313—K1 | −11.2 (3) |
O1—Al1—O2—Si2 | −162.4 (2) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Funding information
Funding for this research was provided by: The Office of Naval Research .
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