catena-Poly[[(tetra-hydro-furan-κO)lithium(I)]-bis-(μ-trimethyl-silanolato-κO:O)-gallium(III)-bis-(μ-trimethyl-silanolato-κO:O)-[(tetra-hydro-furan-κO)lithium(I)]-μ-bromido].

The title chain polymer compound, [GaLi(2)Br(C(3)H(9)OSi)(4)(C(4)H(8)O)(2)](n), was obtained in the reaction of GaBr(3) with Me(3)SiOLi in toluene/tetra-hydro-furan. The Ga(III) atom, located on a twofold rotation axis, is coordinated by four trimethyl-silanolate ligands and has a distorted tetra-hedral geometry. The Li(I) atom is four coordinated by one bridging Br atom located on an inversion centre, two trimethyl-silanolate ligands and one tetra-hydro-furane mol-ecule in a distorted tetra-hedral geometry. The polymeric chains extend along [001]. The tetra-hydro-furane mol-ecule is disordered over two positions with site-occupancy factors of 0.57 (2) and 0.43 (2).

Related literature

For the structures of similar compounds, see: Wheatley (1963 ▶); Barry & Richeson (1994 ▶); Chisholm et al. (2001 ▶). For the properties of GaBr, see: Dohmeier et al. (1996 ▶).

Experimental

Crystal data

[GaLi2Br(C3H9OSi)4(C4H8O)2]

M = 664.49

Monoclinic,

a = 25.802 (8) Å

b = 9.761 (2) Å

c = 18.689 (6) Å

β = 130.81 (2)°

V = 3563 (2) Å3

Z = 4

Mo Kα radiation

μ = 2.06 mm−1

T = 150 K

0.2 × 0.18 × 0.09 mm

Data collection

Stoe Stadi IPDS 2 diffractometer

Absorption correction: numerical (X-RED32; Stoe & Cie, 2008 ▶) T min = 0.503, T max = 0.734

19442 measured reflections

3098 independent reflections

2926 reflections with I > 2σ(I)

R int = 0.080

Refinement

R[F 2 > 2σ(F 2)] = 0.031

wR(F 2) = 0.084

S = 1.05

3098 reflections

199 parameters

H-atom parameters constrained

Δρmax = 0.44 e Å−3

Δρmin = −0.60 e Å−3

Data collection: IPDS (Stoe & Cie, 2008 ▶); cell refinement: IPDS; data reduction: X-RED32 (Stoe & Cie, 2008 ▶); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997 ▶); software used to prepare material for publication: WinGX (Farrugia, 1999 ▶).

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536810035518/is2596sup1.cif

Structure factors: contains datablocks I. DOI: 10.1107/S1600536810035518/is2596Isup2.hkl

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

[GaLi2Br(C3H9OSi)4(C4H8O)2]	F(000) = 1392
Mr = 664.49	Dx = 1.239 Mg m−3
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2yc	Cell parameters from 29109 reflections
a = 25.802 (8) Å	θ = 1.4–25.0°
b = 9.761 (2) Å	µ = 2.06 mm−1
c = 18.689 (6) Å	T = 150 K
β = 130.81 (2)°	Prism, colourless
V = 3563 (2) Å3	0.2 × 0.18 × 0.09 mm
Z = 4

Stoe Stadi IPDS 2 diffractometer	3098 independent reflections
Radiation source: fine-focus sealed tube	2926 reflections with I > 2σ(I)
graphite	Rint = 0.080
Detector resolution: 6.67 pixels mm-1	θmax = 25.0°, θmin = 2.2°
ω scan	h = −30→30
Absorption correction: numerical (X-RED32; Stoe & Cie, 2008)	k = −11→11
Tmin = 0.503, Tmax = 0.734	l = −22→22
19442 measured reflections

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)] = 0.031	Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.084	H-atom parameters constrained
S = 1.05	w = 1/[σ2(Fo2) + (0.0478P)2 + 2.5155P] where P = (Fo2 + 2Fc2)/3
3098 reflections	(Δ/σ)max < 0.001
199 parameters	Δρmax = 0.44 e Å−3
0 restraints	Δρmin = −0.59 e Å−3

Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

	x	y	z	Uiso*/Ueq	Occ. (<1)
Br1	0	0	0	0.1153 (3)
Ga1	0	0.08220 (2)	0.25	0.02639 (11)
Si1	0.11720 (3)	−0.13978 (6)	0.32580 (5)	0.04353 (16)
Si2	−0.08944 (3)	0.28619 (7)	0.07510 (4)	0.04904 (18)
O1	0.06525 (7)	−0.01375 (13)	0.26059 (9)	0.0343 (3)
O2	−0.02655 (7)	0.18106 (14)	0.14841 (9)	0.0366 (3)
O3	0.12462 (10)	0.19275 (18)	0.19590 (15)	0.0616 (5)
C1	0.11245 (16)	−0.2675 (3)	0.2482 (3)	0.0730 (8)
H1A	0.124	−0.2233	0.2131	0.109*
H1B	0.0659	−0.3049	0.2036	0.109*
H1C	0.1449	−0.3419	0.2869	0.109*
C2	0.20664 (14)	−0.0753 (4)	0.4125 (2)	0.0775 (9)
H2A	0.2116	−0.0186	0.4599	0.116*
H2B	0.2171	−0.0203	0.3795	0.116*
H2C	0.2383	−0.153	0.4437	0.116*
C3	0.09372 (16)	−0.2196 (3)	0.3913 (2)	0.0759 (9)
H3A	0.0489	−0.2639	0.3465	0.114*
H3B	0.0917	−0.149	0.4267	0.114*
H3C	0.1282	−0.2883	0.4354	0.114*
C5	−0.15978 (19)	0.1939 (5)	−0.0340 (2)	0.1035 (14)
H5A	−0.1746	0.1167	−0.0177	0.155*
H5B	−0.1436	0.1598	−0.0657	0.155*
H5C	−0.1984	0.2565	−0.0763	0.155*
C4	−0.0577 (2)	0.4234 (4)	0.0441 (3)	0.0990 (13)
H4A	−0.0466	0.3846	0.0072	0.149*
H4B	−0.0165	0.4648	0.1021	0.149*
H4C	−0.0932	0.4937	0.0066	0.149*
C6	−0.12074 (18)	0.3621 (3)	0.1317 (2)	0.0776 (9)
H6A	−0.0833	0.4119	0.1887	0.116*
H6B	−0.137	0.289	0.1487	0.116*
H6C	−0.1584	0.4254	0.0874	0.116*
Li1	0.0429 (2)	0.0908 (4)	0.1507 (3)	0.0437 (8)
C7	0.1816 (6)	0.1116 (11)	0.2192 (8)	0.064 (2)	0.57 (2)
H7A	0.2195	0.108	0.2885	0.077*	0.57 (2)
H7B	0.1665	0.0169	0.1951	0.077*	0.57 (2)
C8	0.2033 (6)	0.1793 (15)	0.1742 (11)	0.092 (4)	0.57 (2)
H8A	0.2529	0.1655	0.2106	0.11*	0.57 (2)
H8B	0.1776	0.1448	0.1091	0.11*	0.57 (2)
C9	0.1886 (8)	0.3183 (16)	0.1736 (15)	0.102 (5)	0.57 (2)
H9A	0.1799	0.3672	0.1203	0.123*	0.57 (2)
H9B	0.2271	0.3635	0.2335	0.123*	0.57 (2)
C10	0.1277 (9)	0.3169 (18)	0.1630 (13)	0.102 (5)	0.57 (2)
H10A	0.1295	0.3931	0.1995	0.123*	0.57 (2)
H10B	0.0864	0.3289	0.0956	0.123*	0.57 (2)
C7A	0.1685 (12)	0.126 (2)	0.187 (2)	0.125 (8)	0.43 (2)
H7C	0.1421	0.0747	0.1268	0.15*	0.43 (2)
H7D	0.1992	0.0611	0.2403	0.15*	0.43 (2)
C8A	0.2101 (9)	0.247 (4)	0.1900 (10)	0.146 (15)	0.43 (2)
H8C	0.2596	0.2374	0.2454	0.175*	0.43 (2)
H8D	0.204	0.2473	0.1319	0.175*	0.43 (2)
C9A	0.1826 (8)	0.375 (2)	0.1970 (14)	0.110 (8)	0.43 (2)
H9C	0.1813	0.4493	0.1602	0.132*	0.43 (2)
H9D	0.2106	0.4041	0.2637	0.132*	0.43 (2)
C10A	0.1110 (9)	0.336 (2)	0.1559 (9)	0.076 (4)	0.43 (2)
H10C	0.0937	0.3971	0.1785	0.091*	0.43 (2)
H10D	0.0784	0.3355	0.086	0.091*	0.43 (2)

	U11	U22	U33	U12	U13	U23
Br1	0.1081 (4)	0.1890 (7)	0.0632 (3)	−0.0066 (4)	0.0623 (3)	−0.0435 (4)
Ga1	0.02674 (16)	0.02626 (16)	0.02663 (16)	0	0.01764 (13)	0
Si1	0.0344 (3)	0.0407 (3)	0.0561 (4)	0.0103 (2)	0.0299 (3)	0.0130 (3)
Si2	0.0548 (4)	0.0490 (3)	0.0400 (3)	0.0205 (3)	0.0295 (3)	0.0161 (3)
O1	0.0327 (7)	0.0349 (6)	0.0390 (7)	0.0039 (5)	0.0251 (6)	0.0045 (5)
O2	0.0420 (7)	0.0371 (7)	0.0338 (7)	0.0091 (6)	0.0261 (6)	0.0076 (5)
O3	0.0746 (12)	0.0558 (9)	0.0834 (13)	−0.0096 (9)	0.0644 (11)	0.0009 (9)
C1	0.0711 (18)	0.0480 (13)	0.115 (2)	0.0111 (13)	0.0675 (19)	−0.0024 (15)
C2	0.0367 (13)	0.092 (2)	0.075 (2)	0.0094 (13)	0.0240 (14)	0.0147 (16)
C3	0.0673 (17)	0.0797 (19)	0.091 (2)	0.0280 (15)	0.0563 (18)	0.0480 (17)
C5	0.072 (2)	0.118 (3)	0.0516 (17)	0.026 (2)	0.0097 (16)	−0.0016 (18)
C4	0.137 (4)	0.076 (2)	0.121 (3)	0.044 (2)	0.101 (3)	0.057 (2)
C6	0.082 (2)	0.082 (2)	0.0751 (19)	0.0426 (17)	0.0540 (18)	0.0226 (16)
Li1	0.051 (2)	0.0485 (19)	0.0458 (19)	0.0031 (15)	0.0378 (18)	0.0035 (15)
C7	0.046 (3)	0.068 (4)	0.076 (4)	−0.003 (3)	0.038 (3)	0.002 (3)
C8	0.056 (5)	0.108 (8)	0.126 (9)	−0.001 (5)	0.066 (6)	0.017 (6)
C9	0.088 (8)	0.102 (11)	0.123 (12)	−0.003 (7)	0.072 (9)	0.038 (8)
C10	0.112 (10)	0.063 (5)	0.182 (13)	0.018 (6)	0.118 (11)	0.042 (6)
C7A	0.084 (12)	0.167 (14)	0.17 (2)	0.014 (10)	0.103 (14)	0.016 (13)
C8A	0.077 (10)	0.31 (4)	0.058 (6)	−0.118 (19)	0.047 (6)	−0.039 (14)
C9A	0.063 (8)	0.116 (13)	0.079 (8)	−0.044 (8)	0.015 (6)	0.038 (8)
C10A	0.059 (7)	0.079 (10)	0.060 (6)	−0.020 (6)	0.027 (5)	0.019 (5)

Br1—Li1	2.422 (4)	C5—H5A	0.98
Br1—Li1i	2.422 (4)	C5—H5B	0.98
Ga1—O2ii	1.8180 (14)	C5—H5C	0.98
Ga1—O2	1.8180 (14)	C4—H4A	0.98
Ga1—O1ii	1.8207 (13)	C4—H4B	0.98
Ga1—O1	1.8207 (13)	C4—H4C	0.98
Ga1—Li1ii	2.713 (3)	C6—H6A	0.98
Ga1—Li1	2.713 (3)	C6—H6B	0.98
Si1—O1	1.6310 (14)	C6—H6C	0.98
Si1—C1	1.855 (3)	C7—C8	1.441 (18)
Si1—C3	1.855 (3)	C7—H7A	0.99
Si1—C2	1.860 (3)	C7—H7B	0.99
Si2—O2	1.6301 (14)	C8—C9	1.41 (2)
Si2—C4	1.850 (3)	C8—H8A	0.99
Si2—C5	1.851 (4)	C8—H8B	0.99
Si2—C6	1.853 (3)	C9—C10	1.45 (2)
O1—Li1	2.011 (4)	C9—H9A	0.99
O2—Li1	1.972 (4)	C9—H9B	0.99
O3—C10	1.385 (17)	C10—H10A	0.99
O3—C7A	1.41 (2)	C10—H10B	0.99
O3—C7	1.463 (14)	C7A—C8A	1.58 (3)
O3—C10A	1.513 (19)	C7A—H7C	0.99
O3—Li1	1.955 (4)	C7A—H7D	0.99
C1—H1A	0.98	C8A—C9A	1.48 (3)
C1—H1B	0.98	C8A—H8C	0.99
C1—H1C	0.98	C8A—H8D	0.99
C2—H2A	0.98	C9A—C10A	1.51 (2)
C2—H2B	0.98	C9A—H9C	0.99
C2—H2C	0.98	C9A—H9D	0.99
C3—H3A	0.98	C10A—H10C	0.99
C3—H3B	0.98	C10A—H10D	0.99
C3—H3C	0.98
Li1—Br1—Li1i	180.00 (12)	H4A—C4—H4B	109.5
O2ii—Ga1—O2	115.88 (9)	Si2—C4—H4C	109.5
O2ii—Ga1—O1ii	94.42 (6)	H4A—C4—H4C	109.5
O2—Ga1—O1ii	117.97 (7)	H4B—C4—H4C	109.5
O2ii—Ga1—O1	117.97 (7)	Si2—C6—H6A	109.5
O2—Ga1—O1	94.42 (6)	Si2—C6—H6B	109.5
O1ii—Ga1—O1	118.09 (8)	H6A—C6—H6B	109.5
O2ii—Ga1—Li1ii	46.60 (9)	Si2—C6—H6C	109.5
O2—Ga1—Li1ii	130.87 (9)	H6A—C6—H6C	109.5
O1ii—Ga1—Li1ii	47.83 (9)	H6B—C6—H6C	109.5
O1—Ga1—Li1ii	134.67 (9)	O3—Li1—O2	119.32 (19)
O2ii—Ga1—Li1	130.87 (9)	O3—Li1—O1	108.0 (2)
O2—Ga1—Li1	46.60 (9)	O2—Li1—O1	84.19 (14)
O1ii—Ga1—Li1	134.67 (9)	O3—Li1—Br1	103.47 (15)
O1—Ga1—Li1	47.83 (9)	O2—Li1—Br1	114.85 (18)
Li1ii—Ga1—Li1	176.47 (15)	O1—Li1—Br1	127.60 (17)
O1—Si1—C1	108.71 (12)	O3—Li1—Ga1	121.79 (17)
O1—Si1—C3	110.29 (10)	O2—Li1—Ga1	42.05 (7)
C1—Si1—C3	110.49 (15)	O1—Li1—Ga1	42.14 (7)
O1—Si1—C2	109.97 (12)	Br1—Li1—Ga1	134.71 (16)
C1—Si1—C2	108.59 (15)	C8—C7—O3	106.1 (8)
C3—Si1—C2	108.77 (16)	C8—C7—H7A	110.5
O2—Si2—C4	108.53 (14)	O3—C7—H7A	110.5
O2—Si2—C5	109.90 (14)	C8—C7—H7B	110.5
C4—Si2—C5	108.9 (2)	O3—C7—H7B	110.5
O2—Si2—C6	109.74 (11)	H7A—C7—H7B	108.7
C4—Si2—C6	109.66 (17)	C9—C8—C7	104.0 (12)
C5—Si2—C6	110.09 (18)	C9—C8—H8A	111
Si1—O1—Ga1	135.98 (8)	C7—C8—H8A	111
Si1—O1—Li1	133.87 (13)	C9—C8—H8B	111
Ga1—O1—Li1	90.02 (11)	C7—C8—H8B	111
Si2—O2—Ga1	134.48 (8)	H8A—C8—H8B	109
Si2—O2—Li1	133.68 (12)	C8—C9—C10	104.8 (12)
Ga1—O2—Li1	91.34 (11)	C8—C9—H9A	110.8
C10—O3—C7A	94.2 (11)	C10—C9—H9A	110.8
C10—O3—C7	105.5 (8)	C8—C9—H9B	110.8
C7A—O3—C10A	108.6 (12)	C10—C9—H9B	110.8
C7—O3—C10A	120.7 (10)	H9A—C9—H9B	108.9
C10—O3—Li1	127.8 (7)	O3—C10—C9	108.6 (12)
C7A—O3—Li1	115.8 (9)	O3—C10—H10A	110
C7—O3—Li1	116.3 (4)	C9—C10—H10A	110
C10A—O3—Li1	114.8 (7)	O3—C10—H10B	110
Si1—C1—H1A	109.5	C9—C10—H10B	110
Si1—C1—H1B	109.5	H10A—C10—H10B	108.3
H1A—C1—H1B	109.5	O3—C7A—C8A	103.3 (18)
Si1—C1—H1C	109.5	O3—C7A—H7C	111.1
H1A—C1—H1C	109.5	C8A—C7A—H7C	111.1
H1B—C1—H1C	109.5	O3—C7A—H7D	111.1
Si1—C2—H2A	109.5	C8A—C7A—H7D	111.1
Si1—C2—H2B	109.5	H7C—C7A—H7D	109.1
H2A—C2—H2B	109.5	C9A—C8A—C7A	106.1 (14)
Si1—C2—H2C	109.5	C9A—C8A—H8C	110.5
H2A—C2—H2C	109.5	C7A—C8A—H8C	110.5
H2B—C2—H2C	109.5	C9A—C8A—H8D	110.5
Si1—C3—H3A	109.5	C7A—C8A—H8D	110.5
Si1—C3—H3B	109.5	H8C—C8A—H8D	108.7
H3A—C3—H3B	109.5	C8A—C9A—C10A	104.0 (13)
Si1—C3—H3C	109.5	C8A—C9A—H9C	111
H3A—C3—H3C	109.5	C10A—C9A—H9C	111
H3B—C3—H3C	109.5	C8A—C9A—H9D	111
Si2—C5—H5A	109.5	C10A—C9A—H9D	111
Si2—C5—H5B	109.5	H9C—C9A—H9D	109
H5A—C5—H5B	109.5	O3—C10A—C9A	99.6 (12)
Si2—C5—H5C	109.5	O3—C10A—H10C	111.9
H5A—C5—H5C	109.5	C9A—C10A—H10C	111.9
H5B—C5—H5C	109.5	O3—C10A—H10D	111.9
Si2—C4—H4A	109.5	C9A—C10A—H10D	111.9
Si2—C4—H4B	109.5	H10C—C10A—H10D	109.6
C1—Si1—O1—Ga1	132.69 (14)	Si2—O2—Li1—O1	−171.36 (12)
C3—Si1—O1—Ga1	11.41 (19)	Ga1—O2—Li1—O1	1.13 (11)
C2—Si1—O1—Ga1	−108.54 (17)	Si2—O2—Li1—Br1	−42.4 (3)
C1—Si1—O1—Li1	−41.9 (2)	Ga1—O2—Li1—Br1	130.09 (14)
C3—Si1—O1—Li1	−163.2 (2)	Si2—O2—Li1—Ga1	−172.49 (19)
C2—Si1—O1—Li1	76.8 (2)	Si1—O1—Li1—O3	−65.9 (2)
O2ii—Ga1—O1—Si1	62.64 (14)	Ga1—O1—Li1—O3	117.85 (16)
O2—Ga1—O1—Si1	−174.90 (12)	Si1—O1—Li1—O2	175.13 (12)
O1ii—Ga1—O1—Si1	−49.84 (10)	Ga1—O1—Li1—O2	−1.13 (11)
Li1ii—Ga1—O1—Si1	7.31 (19)	Si1—O1—Li1—Br1	58.1 (3)
Li1—Ga1—O1—Si1	−176.12 (19)	Ga1—O1—Li1—Br1	−118.2 (2)
O2ii—Ga1—O1—Li1	−121.24 (13)	Si1—O1—Li1—Ga1	176.26 (18)
O2—Ga1—O1—Li1	1.22 (12)	O2ii—Ga1—Li1—O3	11.3 (3)
O1ii—Ga1—O1—Li1	126.28 (12)	O2—Ga1—Li1—O3	100.0 (2)
Li1ii—Ga1—O1—Li1	−176.57 (15)	O1ii—Ga1—Li1—O3	−171.58 (13)
C4—Si2—O2—Ga1	143.96 (18)	O1—Ga1—Li1—O3	−81.7 (2)
C5—Si2—O2—Ga1	−97.1 (2)	O2ii—Ga1—Li1—O2	−88.64 (16)
C6—Si2—O2—Ga1	24.14 (19)	O1ii—Ga1—Li1—O2	88.45 (14)
C4—Si2—O2—Li1	−46.6 (2)	O1—Ga1—Li1—O2	178.32 (17)
C5—Si2—O2—Li1	72.4 (2)	O2ii—Ga1—Li1—O1	93.04 (13)
C6—Si2—O2—Li1	−166.4 (2)	O2—Ga1—Li1—O1	−178.32 (17)
O2ii—Ga1—O2—Si2	−64.78 (11)	O1ii—Ga1—Li1—O1	−89.87 (16)
O1ii—Ga1—O2—Si2	45.99 (14)	O2ii—Ga1—Li1—Br1	−166.26 (14)
O1—Ga1—O2—Si2	171.14 (12)	O2—Ga1—Li1—Br1	−77.6 (2)
Li1ii—Ga1—O2—Si2	−10.94 (19)	O1ii—Ga1—Li1—Br1	10.8 (3)
Li1—Ga1—O2—Si2	172.39 (19)	O1—Ga1—Li1—Br1	100.7 (2)
O2ii—Ga1—O2—Li1	122.83 (13)	C10—O3—C7—C8	−15.5 (15)
O1ii—Ga1—O2—Li1	−126.40 (13)	C7A—O3—C7—C8	39 (3)
O1—Ga1—O2—Li1	−1.25 (13)	C10A—O3—C7—C8	−14.6 (13)
Li1ii—Ga1—O2—Li1	176.67 (14)	Li1—O3—C7—C8	132.3 (9)
C10—O3—Li1—O2	−56.0 (10)	O3—C7—C8—C9	30.4 (14)
C7A—O3—Li1—O2	−174.4 (14)	C7—C8—C9—C10	−33.0 (18)
C7—O3—Li1—O2	164.5 (6)	C7A—O3—C10—C9	−20 (2)
C10A—O3—Li1—O2	−46.6 (9)	C7—O3—C10—C9	−5.1 (18)
C10—O3—Li1—O1	−149.4 (10)	C10A—O3—C10—C9	178 (6)
C7A—O3—Li1—O1	92.1 (15)	Li1—O3—C10—C9	−147.9 (12)
C7—O3—Li1—O1	71.0 (6)	C8—C9—C10—O3	24 (2)
C10A—O3—Li1—O1	−140.1 (8)	C10—O3—C7A—C8A	22.8 (19)
C10—O3—Li1—Br1	73.1 (10)	C7—O3—C7A—C8A	−105 (4)
C7A—O3—Li1—Br1	−45.4 (15)	C10A—O3—C7A—C8A	28 (2)
C7—O3—Li1—Br1	−66.4 (6)	Li1—O3—C7A—C8A	158.7 (10)
C10A—O3—Li1—Br1	82.5 (8)	O3—C7A—C8A—C9A	−2(2)
C10—O3—Li1—Ga1	−105.1 (10)	C7A—C8A—C9A—C10A	−24.0 (16)
C7A—O3—Li1—Ga1	136.4 (14)	C10—O3—C10A—C9A	−23 (4)
C7—O3—Li1—Ga1	115.3 (6)	C7A—O3—C10A—C9A	−42.8 (19)
C10A—O3—Li1—Ga1	−95.8 (8)	C7—O3—C10A—C9A	−26.8 (14)
Si2—O2—Li1—O3	81.3 (3)	Li1—O3—C10A—C9A	−174.2 (11)
Ga1—O2—Li1—O3	−106.2 (2)	C8A—C9A—C10A—O3	39.0 (15)