Molecular Architectures Derived from Metal Ions and the Flexible 3,3^′-Bipyridine Ligand: Unexpected Dimer with Hg(II)

Table 1

Crystallographic data for compounds {[Ag(3,3^′-bpy)](ClO₄) ⋅ H₂O}_𝑛 (1) and [Hg(3,3^′-bpy)(CH₃COO)₂]₂⋅ 3H₂O (2).

	1	2
Formula	C10H10Ag1Cl1N2O5	C28H34Hg2N4O11
Formula weight (g moL^−1)	381.52	1003.77
Crystal color and habit	colorless prisms	colorless prisms
Crystal size (mm)	0.20×0.20×0.10	0.15×0.10×0.05
Crystal system	monoclinic	triclinic
Space group	P21/c	P-1
𝑎(Å)	9.7606(10)	8.5635(5)
𝑏(Å)	7.3145(8)	9.2096(6)
𝑐(Å)	19.572(2)	11.3262(6)
𝛼(°)	90	74.746(5)
𝛽(°)	119.148(9)	84.183(4)
𝛾(°)	90	63.221(6)
𝑉(Å^3)	1220.4(2)	769.21(8)
𝑍	4	1
𝐷calcd. (g cm^−3)	2.077	2.167
F (000)	752	478
𝜇 (mm^−1)	1.888	10.034
No. reflections collected	2333	3572
No. reflections observed	1557	2969
𝑅int	0.0317	0.0359
No. parameters refined	172	208
𝑅[𝐼>2𝜎(𝐼)]	0.0331	0.0270
wR (all reflections)	0.0572	0.0453
Goodness-of-fit (GOF)	1.041	0.911
Δ𝜌max and Δ𝜌min(𝑒Å^−3)	0.941 and –0.517	1.078 and –1.283

GOF = [Σw(𝐹²_𝑜−𝐹²_𝑐)²/(N _o−N_ν)]^1/2; R = Σ‖𝐹_𝑜|−|𝐹_𝑐‖/Σ|𝐹_𝑜|;  wR = [Σ(w(𝐹²_𝑜−𝐹²_𝑐)²)/Σw(𝐹²_𝑜)²]^1/2.