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The chemical compound in question is a coordination complex with the formula [Ru(NH3)4(C4H4N2)2](BF4)2*H2O. This complex consists of a central ruthenium (Ru) atom coordinated to four ammonia (NH3) molecules and two molecules of a bidentate ligand, which is a derivative of pyrazine (C4H4N2). The complex carries a 2+ charge and is balanced by two tetrafluoroborate (BF4) anions and one water (H2O) molecule. The overall charge neutrality is maintained by the presence of the two BF4- anions and the 2+ charge on the complex. This type of complex is often studied for its potential applications in catalysis, as well as its electronic and optical properties.

71964-17-5

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71964-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71964-17-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,6 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 71964-17:
(7*7)+(6*1)+(5*9)+(4*6)+(3*4)+(2*1)+(1*7)=145
145 % 10 = 5
So 71964-17-5 is a valid CAS Registry Number.

71964-17-5Downstream Products

71964-17-5Relevant academic research and scientific papers

Thermal and photochemical properties of some trans-disubstituted tetraammineruthenium(II) complexes of aromatic nitrogen heterocycles, trans-Ru(NH3)4LL′n+

Tfouni, Elia,Ford, Peter C.

, p. 72 - 76 (2008/10/08)

Reported are the syntheses and other solution properties of several disubstituted ruthenium(II) amine complexes trans-Ru(NH3)4LL′n+ (L = pyridine (py), L′ = pyrazine (pz), pyrazinium (pzH+), or 4-acetylpyridine (4-ac-py); L = L′ = pz, pzH+). The visible range spectra of these species each display two metal-to-ligand charge-transfer absorptions, the lower energy transition being the much more intense. However, the higher energy charge-transfer band is especially prominent when L ≠ L′. The aqueous solution basicities of the coordinated pz in these complexes have been determined, and when earlier data are included, the basicity order Ru(NH3)5pz2+ > trans-Ru(NH3)4(py)pz2+ > trans-Ru(NH3)4pz22+ > free pyrazine > trans-Ru(NH3)4(pzH)pz3+ > Ru(NH3)5pz3+ is obtained. Visible range photolyses of the trans-Ru(NH3)4LL′n+ ions in aqueous solution lead predominantly to the photoaquation of coordinated ammonia. The relative quantum yields of these photoreactions show patterns consistent with the excited-state tuning model proposed to explain photochemical properties of the pentaammine analogues Ru(NH3)5L2+.

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