Synthesis and Crystal Structure of the Bioinorganic Complex [Sb(Hedta)]·2H₂O

Table 1

Crystal data and structure refinement for the title complex.

Empirical formula	SbC10H17N2O10	𝐹(000)	888
Formula weight	447.01	Crystal size	0.46 mm × 0.40 mm × 0.35 mm
Wavelength	0.71073 Å	Theta range for data collection	2.89–25.02°
Temperature	298(2) K	Limiting indices	−21≤ℎ≤16, −13≤𝑘≤13, −7≤𝑙≤8
Crystal system	Orthorhombic	Reflections collected/unique	7102/2529 [R(int) = 0.0461]
Space group	Pna2(1)	Completeness to theta = 25.02	99.9%
Unit cell dimensions		Absorption correction	Semiempirical from equivalents
𝑎	18.4823(18) Å	Max. and min. transmission	0.5547 and 0.4738
𝑏	10.9408(12) Å	Refinement method	Full-matrix least-squares on 𝐹^2
𝑐	7.3671(5) Å	Date/restraints/parameters	2529/1/208
𝛽	90.00°	Goodness-of-fit on 𝐹^2	1.040
𝑉	1489.7(2) Å^3	Final 𝑅 indices [𝐼>2𝜎(𝐼)]	R 1 = 0.0332, 𝑤𝑅2 = 0.0811
𝑍	4	𝑅 indices (all data)	R 1 = 0.0359, 𝑤𝑅2 = 0.0832
Calculated density	1.993 g cm^−3	Absolute structure parameter	−0.27(4)
Absorption coefficient	1.909 mm^−1	Largest diff. peak and hole	0.786 and −0.805 e Å^−3