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1028667-77-7

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1028667-77-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1028667-77-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,8,6,6 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1028667-77:
(9*1)+(8*0)+(7*2)+(6*8)+(5*6)+(4*6)+(3*7)+(2*7)+(1*7)=167
167 % 10 = 7
So 1028667-77-7 is a valid CAS Registry Number.

1028667-77-7Downstream Products

1028667-77-7Relevant articles and documents

Polytypism, homochirality, interpenetration, and hydrogen-bonding in transition metal (Mn(II), Ni(II), Cu(II), Zn(II)) 5-hydroxyisophthalate coordination polymers containing 4,4′-bipyridyl

Feller, Russell K.,Cheetham, Anthony K.

, p. 2034 - 2042 (2008)

We report the synthesis of five coordination polymers of divalent transition metals combined with 5-hydroxyisophthalic acid (HIP) and 4,4′-bipyridyl (bipy). Mn forms two polytypic two-dimensional coordination polymers, Mn(HIP)(bipy)?3H2O and Mn(HIP)(bipy)?1/ 4bipy?2H2O (I and II, with ABAB and ABC stacking sequences, respectively); Ni forms a chiral hexagonal three-dimensional coordination polymer with two interpenetrating trigonal sublattices exhibiting the dual quartz topology, Ni(HIP)(bipy)(H2O) (III); Cu forms a one-dimensional coordination polymer containing arrays of infinite hydrogen-bonded molecular ribbons, Cu(HIP)2(bipy) (IV); and Zn forms a two-dimensional coordination polymer with a stair-stepped layered structure, Zn2(HIP)2(bipy)(H2O)2?H 2O (V). The M-HIP-M connections are perpendicular to the M-bipy-M connections in all structures where they are present. The Royal Society of Chemistry.

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