You are an expert in photocatalysis. For the following 3D structure, what is its reduction potential for Ir(IV)/Ir(III) conversion measured against SCE? Please answer in a single float number.
83

Ir         6.22320        3.05720        9.97850
C          5.26310        4.92310        9.34180
C          7.87570        5.61990       10.26010
C          8.97040        6.44720       10.40190
C         10.23600        5.87920       10.55020
C         10.35220        4.51010       10.52300
C          9.20740        3.74450       10.40470
C          7.19610        1.33050       10.48980
C          7.44190        0.84280       11.76550
C          8.15260       -0.33960       11.93270
C          8.62160       -1.09430       10.86730
C          8.38580       -0.59420        9.61300
C          7.70110        0.60350        9.37980
C          7.48170        1.21630        8.06470
C          7.71340        0.60970        6.82740
C          7.43380        1.30120        5.67240
C          6.98300        2.60540        5.74760
C          6.75770        3.16110        6.99740
C          6.68970        3.38490        4.50690
C          4.48140        2.15630        9.61960
C          4.10340        1.48180        8.45040
C          2.80890        1.05580        8.31360
C          1.81910        1.28420        9.24070
C          2.19980        1.90310       10.39380
C          3.50180        2.33190       10.63490
C          4.01390        2.87660       11.88110
C          3.31820        2.93730       13.09880
C          3.97190        3.31850       14.24200
C          5.31210        3.65040       14.17140
C          5.95260        3.63960       12.94520
C          6.09060        3.93280       15.41960
C          5.57120        6.67260       11.69530
C          4.20920        6.57220       11.98900
C          3.75130        6.97040       13.22670
C          4.62700        7.47050       14.16870
C          5.98080        7.58320       13.87970
C          6.45570        7.18190       12.64660
C          6.25500        7.75150        9.08380
C          5.94670        8.98930        9.64920
C          5.94790       10.13150        8.85580
C          6.23660       10.02970        7.50760
C          6.55510        8.80570        6.94300
C          6.56880        7.65110        7.73140
N          7.97750        4.27210       10.28790
N          6.96330        2.47580        8.13240
N          5.32650        3.26930       11.81420
P          6.17630        6.23300       10.06250
F          8.38930       -0.78800       13.17930
F          8.84840       -1.31880        8.56700
F          5.81100        2.72940        3.72200
F          7.79330        3.56690        3.76390
F          6.17010        4.58900        4.74820
F          2.46830        0.37890        7.18750
F          1.23900        2.08400       11.34110
F          6.76200        2.85250       15.83860
F          5.30330        4.30790       16.41730
F          7.00900        4.88670       15.25530
H          4.34820        4.98240        9.69390
H          5.24500        5.00560        8.35720
H          8.84940        7.37950       10.39220
H         10.99310        6.44570       10.66970
H         11.19880        4.10730       10.58430
H          9.29010        2.79060       10.37870
H          7.12240        1.32120       12.49900
H          9.07630       -1.89390       10.98590
H          8.03000       -0.27470        6.77810
H          7.53530        0.89520        4.85180
H          6.43740        4.05010        7.04590
H          4.73250        1.30270        7.75590
H          0.92960        1.03570        9.10220
H          2.40710        2.70580       13.12760
H          3.52500        3.34320       15.05970
H          6.84380        3.89580       12.88510
H          3.62580        6.24040       11.35440
H          2.84450        6.87170       13.43600
H          4.30390        7.72980       14.99960
H          6.58780        7.91350       14.51070
H          7.36330        7.25750       12.44280
H          5.71490        9.06190       10.56680
H          5.76660       10.95880        9.25540
H          6.22080       10.78290        6.97020
H          6.77500        8.75470        6.02930
H          6.78740        6.81150        7.32710


Answer: -1.21