Electrochemical and spectroscopic studies on
some pyridyl and morpholyl adducts of (meso-tetraphenylporphyrin) chromium(III) chloride |
S P Roe, R J Magee and J 0 Hill | 1-8 |

Preparation and characterisation of phosphate
and arsenate apatites of barium and their solid solution |
PVR Rao, B Dey, S K Gupta and T S B Narasaraju | 9-12 |

Kinetics of oxidation of fluorene by alkaline hexacyanoferrate(III) | M Krishna Pillay and N Nagasundaram | 13-19 |

Mixed valency in the high-temperature phases
of transition metal molybdates, AMoO4 (A — Fe, Co, Ni) |
R A Mohan Ram and J Gopalakrishnan |
291-296 |

Enthalpy and entropy changes associated with
mixed ligand chelates of Cu(II) and Ni(II) with 4-methoxy picolinic acid N-oxide and some amino acids in aqueous medium |
C H Sarala Devi and M G Ram Reddy | 297-300 |

Kinetics and mechanism of oxidation of S2Oa ~
by potassium bis (tellurato) cuprate(III) |
G P Panigrahi and A C Pathy | 301-308 |

Structure and stability of complexes of thiohydantoin derivative | R M El-Bahnasawy, M M Shoukry and M M Hussein | 309-313 |

Infrared study of FeO • OH -> Fe2O3 thermal transformation | M Samira Rabie and Hajjar Balkees | 315-320 |

Anisochrony of O-methylene protons of ethyl ester
functions and struc- tural factors in the connected chiral entities |
S N Balasubrahmanyam | 21-58 |

Oxidation of substituted phenols with metal dioxygen
carrier, Co(salen) pyridinate: solvent effects |
S Satish and P A Ganeshpure | 59-65 |

Polychalcone derived from 8-acetoxyquinoline-5-aldehyde | H S Patel | 321-326 |

**Physical and Theoretical**

Reinvestigation of the antifungal activities of some aromatic
N-oxides |
Arabinda Ray, S K Noor Mohammad and G V Kulkarni | 67-71 |

The identification and origin of N-H group overtone and combination bands in the near infrared spectra of 2-thio-pyrrole-l,2-dicarboximides v ^.y- |
S Ram, 0 P Lamba and J S Yadav | 73-83 |

Studies on I-V characteristics of dark and photoconduction in methylbixin | Dilip Ghosh, Prabir Pal, KM Jain and T N Misra | 85-89 |

Crystal spectra of methiodidessof some nitrogen heteroaromatics | M Pal and S Bagchi | 91-95 |

Simple equations for predicting volume properties of aqueous
concentrated electrolyte mixtures |
Anil Kumar | 97-101 |

Excited state relaxation and energy transfer between Tb3 +
->• Nd3 + and Tb3 + -+ Ho3 + in POC13: SnCl4 |
Janardan Joshi and J C Joshi | 103-113 |

Anomeric effect in carbohydrates—An ab initio study on
extended model systems |
P Kaliannan, S Vishveshwara and VSR Rao | 327-339 |

Photoprocesses in sodium decyl sulphate micellar media |
D B Naik and P N Moorthy | 341-350 |

What is the maximum yield in the solid state cinnamic acid
dimerisation? A combinatorial mathematical approach |
J Gautam R Desiraju and V Kannan | 351-362 |

Rotational isomerism and barriers to internal rotation in
3-halopropenes by SCF-MO methods |
V Santhanam and J Sobhanadri | 363-371 |

The scaled one-electron Hamiltonian model' for open-shell
LCAO-MO-SCF calculations: Further corrections to the SOEH energy |
Kalyan Kumar Das and Sankar Prasad Bhattacharyya | 373-382 |

Determination of the number of d electron
states in catalysts |
G Sankar, P Sen, S Vasudevan andC N R Rao | 115-120 |

Magnetic susceptibility studies of lead oxyhalide
glasses containing tran- sition metal oxides |
B G Rao, N Y Vasanthacharya and K J Rao | 383-388 |

A generalization of Brillouin's theorem
and the stability condition in the quantum-mechanical variation principle in the case of general trial wave functions |
Per-Olov Lowdin | 121-126 |

Translational and rotational symmetries in third integral derivatives | James O Jensen, Ajit Banerjee and Jack Simons | 127-134 |

Applications of a novel algorithm
for the calculation of MCSCF wavefunc- tion: a look into possible avenues of convergence acceleration |
Kalyan Kumar Das, I)ebashis Mukherjee
and Sankar Prasad Bhattacharyya |
135-143 |

Linked-cluster theorem in open shell
coupled-cluster theory for mp-mh model space determinants |
D Mukherjee | 145-154 |

Cluster expansion of the wave function.
Potential energy curves of the ground and excited states of CO |
0 Kitao and H Nakatsuji | 155-166 |

The quantum chemistry of valency | M S Gopinathan | 167-176 |

Direct calculation of energy differences,
such as ionization potentials |
WKutzelnigg, H Reitz, S Durmaz and S Koch | 177-194 |

Dynamics of bond-formation in some bound states of HeH+ | V Rama Rao and Asish K Chandra | 195-205 |

The diabatic energy surface for H3 | Mayumi Okada and G G Hall | 207-214 |

Absorption spectrum for the transition
state H* —A quantum mechanical model study |
Sudeshna Sinha, N Sathyamurthy and K Banerjee | 215-222 |

Approximate multiconfiguration variational
calculations using partially localized orbitals |
G P Das | 223-229 |

Improved Z-dependence of the ground-state energies of neutral atoms | P K Chattaraj, A Mukherjee, M P Das and B M Deb | 231-239 |

Compton profiles of atoms from electron
densities via reciprocal form factors |
Shridhar R Gadre and Subhas J Chakravorty | 241-248 |

Sum rules in inelastic gas-surface scattering | Ramakrishna Ramaswamy | 249-252 |

Ab initio calculations on lithium-bonded dimers: a brief review | A B Sannigrahi, Tapas Kar and B Guha Niyogi | 253-262 |

Currents, kinetic energy, and molecular magnetism | jR McWeeny | 263-273 |

Direct space symmetry adaptation of crystal orbitals | Jean-Louis Calais | 275-279 |

Semi-empirical calculations of static
molecular polarizability using CHFT: some benzene derivatives and aromatic heterocycles |
Rana Sen and Subirnath Bhattacharyya | 281-284 |

Geometry optimization of acetonitrile
monomer and dimers using * CNoo/force method |
R Brakaspathy and Surjit Singh | 285-290 |

**Special Issue on Solid State Chemistry**

Foreword | 389 | |

The synthesis, crystal growth, and characterization
of non-stoichiometric magnetite |
J M Honig | 391-409 |

Applications of molecular graphics to zeolite catalysts | A K Cheetham, A K Nowak and P E Betteridge | 411-418 |

Oxides with a tunnel structure characterized
by a mixed framework of octahedra and tetrahedra |
B Raveau | 419-448 |

Synthesis and structure of some interesting oxides of bismuth | J Gopalakrishnan | 449-458 |

Metal-hydrazine complexes as precursors to oxide materials | K C Patil | 459-464 |

On kinetics of crystal growth from supercooled melt | Biman Bagchi and T R Kirkpatrick | 465-472 |

Why are certain substances metallic? | CNR Rao and P P Edwards | 473-498 |

Nonlinear conduction and electrical switching
in one dimensional conductors |
S V Subramanyam and Hemamalini Naik | 499-508 |

Electron-electron interactions in polyacetylene | S Ramasesha | 509-521 |

On some aspects of metallisation with special
reference to iron group transition metal oxides |
P Ganguly | 523-532 |

Ionic conduction in dispersed solid-electrolytes | A K Shukla, N Vaidehi and K T Jacob | 533-547 |

Electrical transport in two phase mixtures | V B Tare | 549-558 |

Low temperature properties of glasses-Unsolved problems | A K Ray£ha.udhuri | 559-564 |

Magnetic resonance lineshapes in powdered and amorphous systems | P Raghunathan and S C Sivasubramanian | 565-580 |

Behaviour of acceptor states in semiconducting BaTiO3 and SrTiO3 | TRN Kutty | 581-597 |

The chloro-methyl exchange rule and its violations
in the packing of organic molecular solids |
Gautam R Desiraju and Jagarlapudi A R P Sarma | 599-605 |

Subject index | 607-614 | |

Author Index | 615-617 |