Two polymorphs of [Rh(μ-I)(COD)]₂

[Rh(μ-I)(COD)]₂ was found to crystallize as two different polymorphs in which the Rh dimer adopts either bent or planar geometries with respect to the Rh₂I₂ core.

Key indicators

Structure: B

• Single-crystal X-ray study
• T = 100 K
• Mean [sigma](C-C) = 0.009 Å
• R factor = 0.035
• wR factor = 0.079
• Data-to-parameter ratio = 17.2

Structure: P

• Single-crystal X-ray study
• T = 100 K
• Mean [sigma](C-C) = 0.006 Å
• R factor = 0.025
• wR factor = 0.055
• Data-to-parameter ratio = 17.2

checkCIF/PLATON results

No syntax errors found





Alert level C
PLAT342_ALERT_3_C Low Bond Precision on  C-C Bonds ...............    0.00938 Ang.
PLAT761_ALERT_1_C CIF Contains no X-H Bonds ......................     Please Check
PLAT762_ALERT_1_C CIF Contains no X-Y-H or H-Y-H Angles ..........     Please Check

Alert level G
PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite          8 Note
PLAT012_ALERT_1_G N.O.K.   _shelx_res_checksum Found in CIF ......     Please Check
PLAT172_ALERT_4_G The CIF-Embedded .res File Contains DFIX Records          1 Report
PLAT860_ALERT_3_G Number of Least-Squares Restraints .............          4 Note
PLAT978_ALERT_2_G Number C-C Bonds with Positive Residual Density.          0 Info

   0 ALERT level A = Most likely a serious problem - resolve or explain
   0 ALERT level B = A potentially serious problem, consider carefully
   3 ALERT level C = Check. Ensure it is not caused by an omission or oversight
   5 ALERT level G = General information/check it is not something unexpected

   3 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   2 ALERT type 2 Indicator that the structure model may be wrong or deficient
   2 ALERT type 3 Indicator that the structure quality may be low
   1 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check






Alert level C
PLAT761_ALERT_1_C CIF Contains no X-H Bonds ......................     Please Check
PLAT762_ALERT_1_C CIF Contains no X-Y-H or H-Y-H Angles ..........     Please Check
PLAT973_ALERT_2_C Check Calcd Positive Resid. Density on       Rh2       1.07 eA-3

Alert level G
PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite         16 Note
PLAT012_ALERT_1_G N.O.K.   _shelx_res_checksum Found in CIF ......     Please Check
PLAT172_ALERT_4_G The CIF-Embedded .res File Contains DFIX Records          1 Report
PLAT232_ALERT_2_G Hirshfeld Test Diff (M-X)  I1       --Rh1      .        6.0 s.u.
PLAT232_ALERT_2_G Hirshfeld Test Diff (M-X)  I1       --Rh2      .        6.5 s.u.
PLAT232_ALERT_2_G Hirshfeld Test Diff (M-X)  I2       --Rh2      .        5.5 s.u.
PLAT802_ALERT_4_G CIF Input Record(s) with more than 80 Characters          1 Info
PLAT860_ALERT_3_G Number of Least-Squares Restraints .............          8 Note
PLAT898_ALERT_4_G Second Reported H-M Symbol in CIF Ignored ......          ! Check
PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L=  0.600          1 Note
PLAT978_ALERT_2_G Number C-C Bonds with Positive Residual Density.          0 Info

   0 ALERT level A = Most likely a serious problem - resolve or explain
   0 ALERT level B = A potentially serious problem, consider carefully
   3 ALERT level C = Check. Ensure it is not caused by an omission or oversight
  11 ALERT level G = General information/check it is not something unexpected

   3 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   6 ALERT type 2 Indicator that the structure model may be wrong or deficient
   1 ALERT type 3 Indicator that the structure quality may be low
   4 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

---

Computing details

For both structures, data collection: APEX3 (Bruker, 2017); cell refinement: SAINT (Bruker, 2017); data reduction: SAINT (Bruker, 2017); program(s) used to solve structure: ShelXT (Sheldrick, 2015a); program(s) used to refine structure: SHELXL (Sheldrick, 2015b); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009).

Di-µ-iodido-bis{[(1,2,5,6-η)-cycloocta-1,4-diene]rhodium(I)} (B)

Crystal data

[Rh2I2(C8H12)2]	F(000) = 1264
Mr = 675.97	Dx = 2.597 Mg m^−3
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
a = 12.3414 (16) Å	Cell parameters from 2574 reflections
b = 11.8176 (17) Å	θ = 2.8–23.3°
c = 11.9374 (15) Å	µ = 5.47 mm^−1
β = 96.690 (3)°	T = 100 K
V = 1729.2 (4) Å^3	Block, dark orange
Z = 4	0.10 × 0.06 × 0.03 mm

Data collection

Nonius Kappa APEXII diffractometer	1775 independent reflections
Radiation source: sealed tube, fine-focus	1320 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.080
Detector resolution: 7.9 pixels mm^-1	θmax = 26.4°, θmin = 2.4°
ω and φ scans	h = −15→15
Absorption correction: multi-scan (SADABS; Krause et al., 2015)	k = −14→14
Tmin = 0.062, Tmax = 0.093	l = −14→14
15175 measured reflections

Refinement

Refinement on F^2	Primary atom site location: dual
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.035	Hydrogen site location: mixed
wR(F^2) = 0.079	H atoms treated by a mixture of independent and constrained refinement
S = 1.03	w = 1/[σ^2(Fo^2) + (0.0302P)^2] where P = (Fo^2 + 2Fc^2)/3
1775 reflections	(Δ/σ)max < 0.001
103 parameters	Δρmax = 1.36 e Å^−3
4 restraints	Δρmin = −0.79 e Å^−3

Special details

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Ų)

	x	y	z	Uiso*/Ueq
I1	0.52770 (3)	0.20354 (3)	0.40381 (4)	0.02475 (15)
Rh1	0.38142 (4)	0.31608 (4)	0.25934 (4)	0.02137 (15)
C1	0.2885 (6)	0.3639 (6)	0.3898 (6)	0.0274 (16)
H1	0.309 (5)	0.316 (5)	0.458 (3)	0.033*
C2	0.3652 (5)	0.4497 (6)	0.3749 (5)	0.0255 (15)
H2	0.433 (3)	0.456 (5)	0.429 (4)	0.031*
C3	0.3323 (6)	0.5616 (5)	0.3199 (6)	0.0294 (16)
H3A	0.380935	0.621981	0.354264	0.035*
H3B	0.256778	0.580087	0.333793	0.035*
C4	0.3390 (6)	0.5579 (5)	0.1903 (6)	0.0312 (17)
H4A	0.282371	0.608659	0.152182	0.037*
H4B	0.410972	0.587248	0.175166	0.037*
C5	0.3237 (5)	0.4422 (6)	0.1410 (6)	0.0273 (16)
H5	0.357 (5)	0.418 (5)	0.074 (3)	0.033*
C6	0.2378 (5)	0.3707 (5)	0.1589 (5)	0.0229 (15)
H6	0.219 (5)	0.306 (3)	0.107 (4)	0.028*
C7	0.1447 (5)	0.4044 (6)	0.2257 (5)	0.0295 (16)
H7A	0.076675	0.366941	0.192462	0.035*
H7B	0.133403	0.487216	0.219759	0.035*
C8	0.1680 (5)	0.3714 (6)	0.3502 (6)	0.0286 (16)
H8A	0.134470	0.428113	0.396580	0.034*
H8B	0.133657	0.297304	0.361920	0.034*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
I1	0.0234 (3)	0.0275 (2)	0.0232 (3)	0.00135 (18)	0.00190 (18)	0.00455 (18)
Rh1	0.0203 (3)	0.0237 (3)	0.0200 (3)	0.0009 (2)	0.0018 (2)	0.0007 (2)
C1	0.031 (4)	0.029 (4)	0.024 (4)	0.000 (3)	0.007 (3)	−0.004 (3)
C2	0.028 (4)	0.027 (4)	0.022 (4)	0.004 (3)	0.003 (3)	−0.004 (3)
C3	0.030 (4)	0.020 (4)	0.038 (4)	0.005 (3)	0.006 (3)	−0.002 (3)
C4	0.028 (4)	0.024 (4)	0.042 (5)	0.003 (3)	0.006 (3)	0.008 (3)
C5	0.025 (4)	0.034 (4)	0.022 (4)	0.004 (3)	−0.001 (3)	0.004 (3)
C6	0.025 (4)	0.025 (4)	0.017 (4)	0.002 (3)	−0.006 (3)	−0.003 (3)
C7	0.024 (4)	0.029 (4)	0.034 (4)	0.005 (3)	−0.001 (3)	0.002 (3)
C8	0.029 (4)	0.026 (4)	0.031 (4)	0.002 (3)	0.006 (3)	0.005 (3)

Geometric parameters (Å, º)

I1—Rh1	2.6975 (7)	C1—C8	1.509 (9)
I1—Rh1^i	2.7072 (7)	C2—C3	1.510 (9)
Rh1—Rh1^i	2.9612 (11)	C3—C4	1.560 (9)
Rh1—C1	2.115 (6)	C4—C5	1.492 (9)
Rh1—C2	2.122 (6)	C5—C6	1.392 (9)
Rh1—C5	2.119 (7)	C6—C7	1.526 (9)
Rh1—C6	2.121 (6)	C7—C8	1.532 (9)
C1—C2	1.413 (9)
Rh1—I1—Rh1^i	66.45 (2)	C6—Rh1—I1	164.61 (18)
I1—Rh1—I1^i	85.13 (2)	C6—Rh1—Rh1^i	136.51 (18)
I1^i—Rh1—Rh1^i	56.621 (18)	C6—Rh1—C2	90.3 (2)
I1—Rh1—Rh1^i	56.933 (19)	C2—C1—Rh1	70.8 (4)
C1—Rh1—I1^i	165.07 (19)	C2—C1—C8	124.6 (6)
C1—Rh1—I1	92.3 (2)	C8—C1—Rh1	112.6 (4)
C1—Rh1—Rh1^i	132.91 (19)	C1—C2—Rh1	70.3 (4)
C1—Rh1—C2	39.0 (2)	C1—C2—C3	122.2 (6)
C1—Rh1—C5	97.7 (3)	C3—C2—Rh1	114.2 (5)
C1—Rh1—C6	81.1 (3)	C2—C3—C4	111.4 (5)
C2—Rh1—I1^i	155.75 (18)	C5—C4—C3	113.4 (5)
C2—Rh1—I1	93.32 (18)	C4—C5—Rh1	111.4 (5)
C2—Rh1—Rh1^i	102.57 (18)	C6—C5—Rh1	70.9 (4)
C5—Rh1—I1	157.07 (18)	C6—C5—C4	124.1 (6)
C5—Rh1—I1^i	90.08 (18)	C5—C6—Rh1	70.8 (4)
C5—Rh1—Rh1^i	102.03 (18)	C5—C6—C7	123.7 (6)
C5—Rh1—C2	82.0 (3)	C7—C6—Rh1	114.5 (4)
C5—Rh1—C6	38.3 (2)	C6—C7—C8	111.9 (5)
C6—Rh1—I1^i	97.57 (17)	C1—C8—C7	112.7 (5)

Symmetry code: (i) −x+1, y, −z+1/2.

Di-µ-iodido-bis{[(1,2,5,6-η)-cycloocta-1,4-diene]rhodium(I)} (P)

Crystal data

[Rh2I2(C8H12)2]	F(000) = 1264
Mr = 675.97	Dx = 2.621 Mg m^−3
Monoclinic, P21/c	Mo Kα radiation, λ = 0.71073 Å
a = 10.4505 (5) Å	Cell parameters from 9797 reflections
b = 19.390 (1) Å	θ = 2.6–26.4°
c = 8.6271 (4) Å	µ = 5.52 mm^−1
β = 101.523 (2)°	T = 100 K
V = 1712.92 (14) Å^3	Block, yellow-orange
Z = 4	0.14 × 0.14 × 0.09 mm

Data collection

Nonius Kappa APEXII diffractometer	3519 independent reflections
Radiation source: sealed tube, fine-focus	2922 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.051
Detector resolution: 7.9 pixels mm^-1	θmax = 26.4°, θmin = 2.0°
ω and φ scans	h = −13→13
Absorption correction: multi-scan (SADABS; Krause et al., 2015)	k = −24→24
Tmin = 0.057, Tmax = 0.093	l = −9→10
38760 measured reflections

Refinement

Refinement on F^2	Primary atom site location: dual
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.025	Hydrogen site location: mixed
wR(F^2) = 0.055	H atoms treated by a mixture of independent and constrained refinement
S = 1.07	w = 1/[σ^2(Fo^2) + (0.0284P)^2] where P = (Fo^2 + 2Fc^2)/3
3519 reflections	(Δ/σ)max = 0.001
205 parameters	Δρmax = 1.26 e Å^−3
8 restraints	Δρmin = −0.67 e Å^−3

Special details

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Ų)

	x	y	z	Uiso*/Ueq
I1	0.73024 (3)	0.56233 (2)	0.46409 (3)	0.02018 (8)
I2	0.89372 (2)	0.46580 (2)	0.19408 (3)	0.02188 (8)
Rh1	0.80485 (3)	0.42940 (2)	0.45350 (4)	0.01765 (9)
Rh2	0.72305 (3)	0.57016 (2)	0.14928 (4)	0.01730 (9)
C1	0.7956 (4)	0.3230 (2)	0.3955 (5)	0.0205 (9)
H1	0.778 (4)	0.318 (2)	0.280 (2)	0.025*
C2	0.9215 (4)	0.3392 (2)	0.4781 (5)	0.0229 (9)
H2	0.990 (3)	0.346 (2)	0.416 (4)	0.027*
C3	0.9741 (4)	0.3226 (2)	0.6498 (5)	0.0253 (10)
H3A	1.059815	0.345583	0.683485	0.030*
H3B	0.988454	0.272270	0.660875	0.030*
C4	0.8836 (4)	0.3453 (2)	0.7597 (5)	0.0261 (10)
H4A	0.827646	0.306003	0.776878	0.031*
H4B	0.937029	0.358549	0.863519	0.031*
C5	0.7978 (4)	0.4056 (2)	0.6927 (5)	0.0241 (10)
H5	0.814 (4)	0.4466 (15)	0.756 (5)	0.029*
C6	0.6732 (4)	0.3985 (2)	0.5982 (5)	0.0198 (9)
H6	0.607 (3)	0.4340 (16)	0.602 (5)	0.024*
C7	0.6093 (4)	0.3303 (2)	0.5424 (5)	0.0234 (9)
H7A	0.529071	0.339182	0.462128	0.028*
H7B	0.583454	0.306526	0.632950	0.028*
C8	0.6995 (4)	0.2832 (2)	0.4711 (5)	0.0240 (9)
H8A	0.748312	0.253106	0.555256	0.029*
H8B	0.645911	0.253237	0.390385	0.029*
C9	0.6610 (4)	0.5469 (2)	−0.0943 (5)	0.0206 (9)
H9	0.679 (4)	0.4967 (11)	−0.103 (5)	0.025*
C10	0.7642 (4)	0.5945 (2)	−0.0773 (5)	0.0208 (9)
H10	0.847 (3)	0.5720 (19)	−0.087 (5)	0.025*
C11	0.7443 (4)	0.6700 (2)	−0.1207 (5)	0.0247 (10)
H11A	0.665144	0.675101	−0.204767	0.030*
H11B	0.819921	0.686915	−0.162912	0.030*
C12	0.7293 (4)	0.7139 (2)	0.0242 (5)	0.0237 (9)
H12A	0.816605	0.729810	0.079190	0.028*
H12B	0.676206	0.755212	−0.012730	0.028*
C13	0.6659 (4)	0.6751 (2)	0.1393 (5)	0.0228 (9)
H13	0.685 (4)	0.693 (2)	0.250 (3)	0.027*
C14	0.5529 (4)	0.6343 (2)	0.0998 (5)	0.0210 (9)
H14	0.501 (3)	0.626 (2)	0.181 (4)	0.025*
C15	0.4755 (4)	0.6267 (2)	−0.0676 (5)	0.0240 (9)
H15A	0.485798	0.669082	−0.128031	0.029*
H15B	0.381741	0.621703	−0.064695	0.029*
C16	0.5200 (4)	0.5641 (2)	−0.1526 (5)	0.0233 (9)
H16A	0.466146	0.523646	−0.136871	0.028*
H16B	0.504985	0.573709	−0.267501	0.028*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
I1	0.02462 (15)	0.01759 (15)	0.01827 (15)	0.00106 (11)	0.00414 (11)	0.00015 (11)
I2	0.02106 (15)	0.02275 (16)	0.02346 (15)	0.00440 (11)	0.00840 (11)	0.00442 (12)
Rh1	0.01825 (17)	0.01641 (17)	0.01870 (17)	0.00044 (13)	0.00467 (13)	0.00062 (13)
Rh2	0.01825 (17)	0.01664 (17)	0.01712 (17)	0.00074 (13)	0.00379 (13)	0.00049 (13)
C1	0.028 (2)	0.014 (2)	0.021 (2)	0.0024 (17)	0.0100 (18)	−0.0021 (18)
C2	0.024 (2)	0.018 (2)	0.029 (2)	0.0044 (18)	0.0087 (18)	0.0019 (19)
C3	0.021 (2)	0.026 (2)	0.029 (2)	0.0061 (18)	0.0056 (18)	0.004 (2)
C4	0.032 (3)	0.022 (2)	0.023 (2)	0.0001 (19)	0.0030 (19)	−0.0015 (19)
C5	0.033 (3)	0.021 (2)	0.019 (2)	0.001 (2)	0.0093 (19)	0.0014 (19)
C6	0.019 (2)	0.019 (2)	0.022 (2)	0.0040 (17)	0.0069 (17)	−0.0012 (18)
C7	0.021 (2)	0.024 (2)	0.026 (2)	−0.0016 (18)	0.0056 (18)	0.0011 (19)
C8	0.028 (2)	0.020 (2)	0.024 (2)	0.0007 (18)	0.0052 (18)	−0.0011 (18)
C9	0.026 (2)	0.023 (2)	0.013 (2)	0.0013 (18)	0.0045 (17)	−0.0008 (18)
C10	0.023 (2)	0.025 (2)	0.018 (2)	0.0030 (18)	0.0099 (17)	−0.0014 (18)
C11	0.027 (2)	0.025 (2)	0.023 (2)	−0.0018 (19)	0.0065 (18)	0.0073 (19)
C12	0.029 (2)	0.018 (2)	0.022 (2)	−0.0015 (18)	0.0003 (18)	0.0016 (18)
C13	0.029 (2)	0.017 (2)	0.021 (2)	0.0051 (18)	−0.0001 (18)	−0.0013 (18)
C14	0.024 (2)	0.017 (2)	0.022 (2)	0.0081 (18)	0.0060 (18)	0.0019 (18)
C15	0.024 (2)	0.020 (2)	0.028 (2)	0.0031 (18)	0.0020 (19)	0.0023 (19)
C16	0.026 (2)	0.023 (2)	0.019 (2)	−0.0014 (18)	0.0011 (18)	−0.0002 (18)

Geometric parameters (Å, º)

I1—Rh1	2.6998 (4)	C2—C3	1.509 (6)
I1—Rh2	2.7061 (4)	C3—C4	1.531 (6)
I2—Rh1	2.6833 (4)	C4—C5	1.516 (6)
I2—Rh2	2.6738 (4)	C5—C6	1.398 (6)
Rh1—C1	2.120 (4)	C6—C7	1.516 (6)
Rh1—C2	2.117 (4)	C7—C8	1.526 (5)
Rh1—C5	2.131 (4)	C9—C10	1.404 (6)
Rh1—C6	2.120 (4)	C9—C16	1.496 (6)
Rh2—C9	2.120 (4)	C10—C11	1.514 (6)
Rh2—C10	2.137 (4)	C11—C12	1.547 (6)
Rh2—C13	2.117 (4)	C12—C13	1.501 (6)
Rh2—C14	2.142 (4)	C13—C14	1.405 (6)
C1—C2	1.400 (6)	C14—C15	1.514 (6)
C1—C8	1.514 (6)	C15—C16	1.538 (6)
Rh1—I1—Rh2	88.274 (12)	C2—C1—Rh1	70.6 (2)
Rh2—I2—Rh1	89.290 (12)	C2—C1—C8	122.2 (4)
I2—Rh1—I1	85.839 (12)	C8—C1—Rh1	113.4 (3)
C1—Rh1—I1	159.56 (12)	C1—C2—Rh1	70.8 (2)
C1—Rh1—I2	93.80 (11)	C1—C2—C3	124.9 (4)
C1—Rh1—C5	90.54 (16)	C3—C2—Rh1	111.4 (3)
C2—Rh1—I1	161.67 (12)	C2—C3—C4	113.4 (3)
C2—Rh1—I2	90.72 (11)	C5—C4—C3	112.2 (3)
C2—Rh1—C1	38.60 (16)	C4—C5—Rh1	113.8 (3)
C2—Rh1—C5	81.67 (16)	C6—C5—Rh1	70.4 (2)
C2—Rh1—C6	97.81 (16)	C6—C5—C4	123.8 (4)
C5—Rh1—I1	96.17 (12)	C5—C6—Rh1	71.2 (2)
C5—Rh1—I2	161.76 (12)	C5—C6—C7	124.8 (4)
C6—Rh1—I1	91.38 (11)	C7—C6—Rh1	110.9 (3)
C6—Rh1—I2	159.83 (11)	C6—C7—C8	112.4 (3)
C6—Rh1—C1	81.93 (16)	C1—C8—C7	112.6 (3)
C6—Rh1—C5	38.41 (16)	C10—C9—Rh2	71.4 (2)
I2—Rh2—I1	85.902 (12)	C10—C9—C16	125.0 (4)
C9—Rh2—I1	157.60 (12)	C16—C9—Rh2	111.8 (3)
C9—Rh2—I2	92.63 (12)	C9—C10—Rh2	70.1 (2)
C9—Rh2—C10	38.52 (16)	C9—C10—C11	123.0 (4)
C9—Rh2—C14	81.27 (16)	C11—C10—Rh2	113.4 (3)
C10—Rh2—I1	163.81 (12)	C10—C11—C12	111.3 (3)
C10—Rh2—I2	92.82 (11)	C13—C12—C11	112.8 (3)
C10—Rh2—C14	89.99 (16)	C12—C13—Rh2	110.5 (3)
C13—Rh2—I1	92.62 (12)	C14—C13—Rh2	71.7 (2)
C13—Rh2—I2	155.19 (12)	C14—C13—C12	125.6 (4)
C13—Rh2—C9	97.80 (16)	C13—C14—Rh2	69.8 (2)
C13—Rh2—C10	81.78 (16)	C13—C14—C15	123.3 (4)
C13—Rh2—C14	38.53 (16)	C15—C14—Rh2	113.5 (3)
C14—Rh2—I1	95.06 (11)	C14—C15—C16	112.1 (3)
C14—Rh2—I2	166.28 (11)	C9—C16—C15	112.7 (3)