“Lantern-Shaped” Platinum(III) Complexes with Axially Bound 9-Ethylguanine or 1-Methylcytosine (L) of General Formula [Pt_𝟐{HN=C(Bu^t)O}_𝟒L₂](NO_𝟑)_𝟐

Table 1

Crystal data and structure refinement parameters for [Pt₂{HN=C(Bu^t)O}₄(9-EtG)₂](NO₃)₂⋅tetrahydrofurane (1 ⋅C₄H₈O) and [Pt₂{HN=C(Bu^t)O}₄(1-MeC)₂](NO₃)₂⋅2(1,4-dioxane) (2 ⋅2C₄H₈O₂).

Crystal	1 ⋅C4H8O	2 ⋅2C4H8O2
Empirical formula	C38H66N16O13Pt2	C38H70N12O16Pt2
Formula weight	1345.24	1341.24
Temperature (K)	293(2)	293(2)
Wavelength (Å)	0.71073	0.71073
Crystal system	monoclinic	monoclinic
Space group	P 21/c	P 21/c
a (Å)	9.7776(3)	10.6566(5)
b (Å)	14.8367(5)	15.8137(6)
c (Å)	18.8734(7)	15.5868(6)
𝛽(∘)	98.54(1)	102.51(1)
Volume (Å^3)	2707.5(2)	2564.5(3)
𝑍	2	2
Density (calculated) (Mg/m^3)	1.650	1.737
Absorption coefficient (mm^−1)	5.231	5.524
𝐹(000)	1332	1332
Crystal size (mm^3)	0.300×0.150×0.080	0.240×0.210×0.075
𝜃 range for data collection (∘)	1.75 to 25.18	2.34 to 34.11
Index ranges	−11≤ℎ≤11,−17≤𝑘≤17,−22≤𝑙≤22	−16≤ℎ≤16,−24≤𝑘≤24,−23≤𝑙≤23
Reflections collected	42660	43490
Independent reflections	4843 [𝑅(int)=0.0917]	10083 [𝑅(int)=0.0639]
Refinement method	Full-matrix least-squares on 𝐹^2	Full-matrix least-squares on 𝐹^2
Data/restraints/parameters	4843/0/301	10083/0/291
Goodness-of-fit on 𝐹^2	1.046	1.003
Final 𝑅 indices [𝐼>2𝜎(𝐼)]	𝑅1=0.0398, 𝑤𝑅2=0.0906	𝑅1=0.0469, 𝑤𝑅2=0.1117
𝑅 indices (all data)	𝑅1=0.0614, 𝑤𝑅2=0.1014	𝑅1=0.0968, 𝑤𝑅2=0.1390
Largest diff. peak and hole (𝑒 Å^−3)	1.372 and −0.751	2.571 and −0.766