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Tag: Molecular orbital theory

93.CHEMICAL BONDING (40)- Covalent Bonding(39) – Molecular Orbital Theory(12)- Heteronuclear diatomic molecules(3).

December 12, 2018 Gauri Nigudkar

CO in high concentration is fatal in less than 5 mins !! The worst part is that this is an odorless and colorless gas and

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92.CHEMICAL BONDING (39)- Covalent Bonding(38) – Molecular Orbital Theory(13)- Heteronuclear diatomic molecules(2)- HF.

December 6, 2018 Gauri Nigudkar

  From this post onwards, we shall study some examples and learn how bonds are formed between two different atoms. Hydrogen fluoride (HF) – We

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91.CHEMICAL BONDING (38)- Covalent Bonding(37) – Molecular Orbital Theory(12) – Heteronuclear Diatomic molecules(1)

December 4, 2018 Gauri Nigudkar

With this post we start discussing MOT theory for diatomic heteronuclear molecules – molecules formed by two different atoms. The MO diagrams for heteronuclear atoms

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90. CHEMICAL BONDING (37)- Covalent Bonding(36) – Molecular Orbital Theory(11) – Fluorine.

December 2, 2018 Gauri Nigudkar

Fluorine molecule (F2) –  F (9) 1s2 2s2 2p5 Two fluorine atoms bring 7 electrons each to the table and thus the 10 electrons get arranged

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89. CHEMICAL BONDING (36)- Covalent Bonding(35) – Molecular Orbital Theory(10)- Nitrogen molecule.

November 26, 2018 Gauri Nigudkar

Nitrogen molecule (N3) –  N (7) 1s2 2s2 2p3 When we construct the MO diagram for nitrogen , we will only draw the valence 2s and

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88.CHEMICAL BONDING (35)- Covalent Bonding(34) – Molecular Orbital Theory(9)- Helium ,sp mixing.

November 25, 2018 Gauri Nigudkar

Helium molecule (He2) – He (2) – 1s2.   Helium has two electrons in the 1s orbital. Thus, when we draw the MO diagram, two electrons

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87. CHEMICAL BONDING (34)- Covalent Bonding(33) – Molecular Orbital Theory(8) – Overlaps and symmetry(2)

November 25, 2018 Gauri Nigudkar

Pi  Symmetry Orbitals with pi symmetry are NOT symmetric w.r.t to the internuclear axis. When rotated around the axis, they produce a phase change (which

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86.CHEMICAL BONDING (33)- Covalent Bonding(32) – Molecular Orbital Theory(7) – Overlaps and symmetry(1)

November 25, 2018 Gauri Nigudkar

Overlaps & Symmetry Based on how the bonds are formed, the interaction between two AOs  can have following symmetry- i) Sigma (σ) ii) Pi (π

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85.CHEMICAL BONDING (32)- Covalent Bonding(31) – Molecular Orbital Theory(6)- Symmetry of MOs.

November 23, 2018 Gauri Nigudkar

SYMMETRY OF MOLECULAR ORBITALS.   Based on symmetry ,the orbitals can be classified as – GERADE MOs and UNGERADE MOs. Gerade MOs ⇒ Gerade = Even

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84. CHEMICAL BONDING (31)- Covalent Bonding(30) – Molecular Orbital Theory(5).

November 19, 2018 Gauri Nigudkar

In this post we shall begin by constructing MO diagrams. We shall begin with the simplest of all homonuclear diatomic molecules – The H2 molecule.

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83.CHEMICAL BONDING (30)- Covalent Bonding(29) – Molecular Orbital Theory(4)- LCAO approximation(2).

November 16, 2018 Gauri Nigudkar

  We have seen in the periodic table series , that the electronic configuration tells us where exactly the electron is. Configuration means order… so

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82.CHEMICAL BONDING (29)- Covalent Bonding(28) – Molecular Orbital Theory(3)- LCAO approximation(1).

November 14, 2018 Gauri Nigudkar

  LINEAR COMBINATION OF ATOMIC ORBITALS (LCAO approximation)     MOT is incorporated in quantum mechanics.  As we have already discussed that classical physics (physics

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81.CHEMICAL BONDING (28)- Covalent Bonding(27) – Molecular Orbital Theory(2).

November 13, 2018 Gauri Nigudkar

Molecular orbital theory (MOT).     This theory assumes that the electrons ,shared between the atoms, are spread throughout the molecule i.e they are NOT

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80.CHEMICAL BONDING (27)- Covalent Bonding(26) – Molecular Orbital Theory(1).

November 12, 2018 Gauri Nigudkar

Molecular orbital theory(MOT) is a quantum mechanical approach to bonding.Thus, this theory considers an orbital as a wave function(ψ).In order to understand MOT , it

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A blog written to elucidate concepts in chemistry.

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