15844-52-7

Basic information

• Product Name: cupric nitrilotriacetate
• Synonyms: cupric nitrilotriacetate
• CAS NO: 15844-52-7
• Molecular Formula: C₆H₆NO₆*Cu
• Molecular Weight: 0
• EINECS: 252-233-4
• Mol File: 15844-52-7.mol

Chemical Properties

• Boiling Point: 498.2°C at 760 mmHg
• Flash Point: 255.1°C
• Appearance: /
• Vapor Pressure: 2.78E-11mmHg at 25°C
• CAS DataBase Reference: cupric nitrilotriacetate(CAS DataBase Reference)
• NIST Chemistry Reference: cupric nitrilotriacetate(15844-52-7)
• EPA Substance Registry System: cupric nitrilotriacetate(15844-52-7)

Safety Data

• Hazardous Substances Data: 15844-52-7(Hazardous Substances Data)

Usage

InChI:InChI=1/2C6H9NO6.3Cu/c2*8-4(9)1-7(2-5(10)11)3-6(12)13;;;/h2*1-3H2,(H,8,9)(H,10,11)(H,12,13);;;/q;;3*+2/p-6

Upstream product

• 139-13-9 nitrilotriacetic acid 
• 112621-47-3 bis(dihydrogen nitrilotriacetato)copper(II) dihydrate 
• 12317-28-1 [Pb(nitrilotriacetate)]^(1-) 
• 18976-16-4 Co(II)(nitrilotriacetate) 

Downstream Products

• 85945-33-1 [Cu(1,4,7,10,13-penta-azacyclopentadecane)]⁽²⁺⁾ 

Relevant articles and documents

Copper(II) and nickel(II) chelates of the dihydrogen nitrilotriacetate(1-) ion: Crystal and molecular structure of bis(N,N-bis(carboxymethyl)glycinato)copper(II) dihydrate

Bis(dihydrogen nitrilotriacetato) chelates of copper(II) and nickel(II) have been obtained as dihydrates, [M(H2NTA)2]· 2H2O (M = Cu, Ni; H3NTA = nitrilotriacetic acid or N,N-bis(carboxymethyl)glycine). The potentiometric and conductometric titration curves, TG-DTA analysis, spectral properties (IR, reflectance, ESR), and magnetic susceptibility data of these sparingly soluble in water compounds are discussed, taking in view the crystal structure of the copper complex [Cu(H2NTA)2]·2H2O, which crystallizes in the monoclinic system, space group P21/c (a = 6.845 (1) A?, b = 14.095 (4) A?, c = 9.427 (3) A?, β = 91.95 (2)°, Z = 2, V = 909.1 A?3, dmeasd = 1.73 (2) g·cm-3, dexptl = 1.75 g·cm-3, μ = 1.631 mm-1 (Mo Kα)). Final R = 0.032 and Rw = 0.033 for 1416 independent observed reflections. The copper atom lies in the center of symmetry. Two dihydrogen nitrilotriacetate(1-) or N,N-bis(carboxymethy)glycinate(1-) ions, H2NTA-, act as tridentate chelating agents, making up an all-trans elongated octahedral coordination around the same copper atom (Cu-N = 2.062 (3) A?, Cu-O(3) = 1.954 (2) A?, Cu-O(13) = 2.321 (2) A?) where each ligand remains with a free carboxylic group of one of the two acetic or N-carboxymethyl arms. Two interesting structural features of this solid are (1) the very short trans-apical Cu-O(13) and Cu-O(13i) bonds (symmetry code i: 1 - x, 1 - y, 1 - z), as compared with the un-ionized carboxyl-to-copper(II) coordination bonds in related compounds (2.467-2.518 A?), and (2) the formation of hydrogen bonds O(14)-H?OW (2.598 (4) A?; 164°) involving one water oxygen atom and the carboxylic group of each ligand bonded to copper.

Metal-exchange Reactions between Cobalt(II) and Lead(II) Complexes of Nitrilotriacetic Acid and Copper(II)

The reactions between the cobalt(II) and lead(II) complexes of nitrilotriacetic acid (H3nta) and the copper(II) ion have been studied using the stopped-flow technique over the concentration ranges 0 = 5E-4, II>0 = (2.5-20)E-3, and = (3-100)E-6 mol dm-3.The kinetics are found to agree with rate law (i).Values of kM(nta) = 1.1E-3 and 4.0E-2 s-1, kHM(nta) = 7.8E2 and 2.6E3 dm3mol-1s-1, and kCuM(nta) = 2.6 and 35 dm3mol-1s-1 are found for M = CoII and PbII respectively, at 25 deg C.The mechanism of these exchange reactions is discussed with reference to the relative stabilities of the metal-ligand complexes involved in each of the different reaction pathways.