They are isoelectronic, and have similar bonding with a tetrahedral shape (valence bond theory sp3 hybridized) Isolobal refer to frontier orbitals on molecular fragemts such as free radicals not to stable species such a s ammonium cation and tetrahydroborate anion
The oxidation number of BH4 in the compound is -1.
NaBH4 + 2H2O -> NaBO2 + 4H2 [1] DeltaG(298K)= -299 kJ/mol BH4 DeltaH(298K)= -231 kJ/mol BH4 (10.8 mass% H) NaBH4 + 4H2O -> NaB(OH)4 + 4H2 [2] DeltaG (298K)= -315 kJ/mol BH4 DeltaH = -247 kJ/mol BH4 (7.28 mass% H) NaBH4 + 6H2O -> NaB(OH)4.2H2O [3] DeltaG = -319kJ/mol BH4 DeltaH = -213 kJ/mol BH4 (5.48 mass% H) *Hydrolysis in Eq.[1] is not the most favorable reaction!
The hyberdization of BH4- is sp3, as boron donates one electron to each of the hydrogen atoms, resulting in four sigma bonds formed by the overlap of the sp3 hybrid orbitals on boron with the 1s orbitals on hydrogen.
"NH4" I assume is NH4+This is the ammonium ion.
NH4 is colorless.
Not sure what the word isobal might be. BH4- and NH4+ are isoelectronic. BF4- and NH4+ are both tetrahedral and have the same geometry.
[Mn(CO)5],ch3,cl and H derived from octahedral fragments are examples of isolobal.
The oxidation number of BH4 in the compound is -1.
It's geometry is tetrahedral.
Be(BH4)2
NaBH4 + 2H2O -> NaBO2 + 4H2 [1] DeltaG(298K)= -299 kJ/mol BH4 DeltaH(298K)= -231 kJ/mol BH4 (10.8 mass% H) NaBH4 + 4H2O -> NaB(OH)4 + 4H2 [2] DeltaG (298K)= -315 kJ/mol BH4 DeltaH = -247 kJ/mol BH4 (7.28 mass% H) NaBH4 + 6H2O -> NaB(OH)4.2H2O [3] DeltaG = -319kJ/mol BH4 DeltaH = -213 kJ/mol BH4 (5.48 mass% H) *Hydrolysis in Eq.[1] is not the most favorable reaction!
The hyberdization of BH4- is sp3, as boron donates one electron to each of the hydrogen atoms, resulting in four sigma bonds formed by the overlap of the sp3 hybrid orbitals on boron with the 1s orbitals on hydrogen.
"NH4" I assume is NH4+This is the ammonium ion.
NH4 is colorless.
NH3Cr2o7 is ammonium dichromate and CoCl3 is cobalt III Chloride
NH4 is the chemical formula of the cation ammonium - (NH4)+.
The name of NH4+ is ammonium ion. Its chemical formula is NH4+.